402532045491 has 8 divisors (see below), whose sum is σ = 536712724480. Its totient is φ = 268353031752.

The previous prime is 402532045471. The next prime is 402532045541. The reversal of 402532045491 is 194540235204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402532045491 - 2²⁹ = 401995174579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402532045471) 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, 348366 + ... + 962508.

It is an arithmetic number, because the mean of its divisors is an integer number (67089090560).

Almost surely, 2^402532045491 is an apocalyptic number.

402532045491 is a deficient number, since it is larger than the sum of its proper divisors (134180678989).

402532045491 is a wasteful number, since it uses less digits than its factorization.

402532045491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832625.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 402532045491 in words is "four hundred two billion, five hundred thirty-two million, forty-five thousand, four hundred ninety-one".