1420752545547 has 16 divisors (see below), whose sum is σ = 1908270403872. Its totient is φ = 940213347840.

The previous prime is 1420752545519. The next prime is 1420752545617. The reversal of 1420752545547 is 7455452570241.

It is not a de Polignac number, because 1420752545547 - 2⁷ = 1420752545419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420752545547.

It is not an unprimeable number, because it can be changed into a prime (1420752549547) 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, 996318 + ... + 1958099.

It is an arithmetic number, because the mean of its divisors is an integer number (119266900242).

Almost surely, 2^{1420752545547} is an apocalyptic number.

1420752545547 is a deficient number, since it is larger than the sum of its proper divisors (487517858325).

1420752545547 is a wasteful number, since it uses less digits than its factorization.

1420752545547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955598.

The product of its (nonzero) digits is 7840000, while the sum is 51.

The spelling of 1420752545547 in words is "one trillion, four hundred twenty billion, seven hundred fifty-two million, five hundred forty-five thousand, five hundred forty-seven".