901855901451 has 32 divisors (see below), whose sum is σ = 1276206674688. Its totient is φ = 565725686400.

The previous prime is 901855901417. The next prime is 901855901459. The reversal of 901855901451 is 154109558109.

It is a happy number.

It is not a de Polignac number, because 901855901451 - 2³⁴ = 884676032267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 901855901451.

It is not an unprimeable number, because it can be changed into a prime (901855901459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453321 + ... + 1417466.

It is an arithmetic number, because the mean of its divisors is an integer number (39881458584).

Almost surely, 2^901855901451 is an apocalyptic number.

901855901451 is a deficient number, since it is larger than the sum of its proper divisors (374350773237).

901855901451 is a wasteful number, since it uses less digits than its factorization.

901855901451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870971.

The product of its (nonzero) digits is 324000, while the sum is 48.

The spelling of 901855901451 in words is "nine hundred one billion, eight hundred fifty-five million, nine hundred one thousand, four hundred fifty-one".