1642260506372 has 6 divisors (see below), whose sum is σ = 2873955886158. Its totient is φ = 821130253184.

The previous prime is 1642260506371. The next prime is 1642260506387. The reversal of 1642260506372 is 2736050622461.

It can be written as a sum of positive squares in only one way, i.e., 1221856101376 + 420404404996 = 1105376^2 + 648386^2 .

It is not an unprimeable number, because it can be changed into a prime (1642260506371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205282563293 + ... + 205282563300.

It is an arithmetic number, because the mean of its divisors is an integer number (478992647693).

Almost surely, 2^{1642260506372} is an apocalyptic number.

It is an amenable number.

1642260506372 is a deficient number, since it is larger than the sum of its proper divisors (1231695379786).

1642260506372 is a wasteful number, since it uses less digits than its factorization.

1642260506372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410565126597 (or 410565126595 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 1642260506372 in words is "one trillion, six hundred forty-two billion, two hundred sixty million, five hundred six thousand, three hundred seventy-two".