70530733628 has 48 divisors (see below), whose sum is σ = 140057273664. Its totient is φ = 30889774080.

The previous prime is 70530733621. The next prime is 70530733681. The reversal of 70530733628 is 82633703507.

It is a super-2 number, since 2×70530733628² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70530733621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551543 + ... + 667278.

It is an arithmetic number, because the mean of its divisors is an integer number (2917859868).

Almost surely, 2^70530733628 is an apocalyptic number.

It is an amenable number.

70530733628 is a deficient number, since it is larger than the sum of its proper divisors (69526540036).

70530733628 is a wasteful number, since it uses less digits than its factorization.

70530733628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218902 (or 1218900 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 70530733628 in words is "seventy billion, five hundred thirty million, seven hundred thirty-three thousand, six hundred twenty-eight".