401583120851 has 32 divisors (see below), whose sum is σ = 476805089280. Its totient is φ = 334154937600.

The previous prime is 401583120811. The next prime is 401583120863. The reversal of 401583120851 is 158021385104.

It is not a de Polignac number, because 401583120851 - 2⁶ = 401583120787 is a prime.

It is a super-2 number, since 2×401583120851² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401583120811) 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, 3921071 + ... + 4022183.

It is an arithmetic number, because the mean of its divisors is an integer number (14900159040).

Almost surely, 2^401583120851 is an apocalyptic number.

401583120851 is a deficient number, since it is larger than the sum of its proper divisors (75221968429).

401583120851 is a wasteful number, since it uses less digits than its factorization.

401583120851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101787.

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 401583120851 in words is "four hundred one billion, five hundred eighty-three million, one hundred twenty thousand, eight hundred fifty-one".