61537371437022 has 16 divisors (see below), whose sum is σ = 132542030787600. Its totient is φ = 18934575826752.

The previous prime is 61537371436973. The next prime is 61537371437029. The reversal of 61537371437022 is 22073417373516.

It is a super-2 number, since 2×61537371437022² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61537371437029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394470329647 + ... + 394470329802.

It is an arithmetic number, because the mean of its divisors is an integer number (8283876924225).

Almost surely, 2^{61537371437022} is an apocalyptic number.

61537371437022 is an abundant number, since it is smaller than the sum of its proper divisors (71004659350578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61537371437022 is a wasteful number, since it uses less digits than its factorization.

61537371437022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788940659467.

The product of its (nonzero) digits is 4445280, while the sum is 51.

The spelling of 61537371437022 in words is "sixty-one trillion, five hundred thirty-seven billion, three hundred seventy-one million, four hundred thirty-seven thousand, twenty-two".