425645540603431 has 8 divisors (see below), whose sum is σ = 425792688834960. Its totient is φ = 425498403525888.

The previous prime is 425645540603369. The next prime is 425645540603449. The reversal of 425645540603431 is 134306045546524.

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

It is a cyclic number.

It is not a de Polignac number, because 425645540603431 - 2¹⁷ = 425645540472359 is a prime.

It is a super-2 number, since 2×425645540603431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425645540600431) 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, 73910775 + ... + 79461271.

It is an arithmetic number, because the mean of its divisors is an integer number (53224086104370).

Almost surely, 2^{425645540603431} is an apocalyptic number.

425645540603431 is a deficient number, since it is larger than the sum of its proper divisors (147148231529).

425645540603431 is a wasteful number, since it uses less digits than its factorization.

425645540603431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5576993.

The product of its (nonzero) digits is 20736000, while the sum is 52.

The spelling of 425645540603431 in words is "four hundred twenty-five trillion, six hundred forty-five billion, five hundred forty million, six hundred three thousand, four hundred thirty-one".