65625361431 has 8 divisors (see below), whose sum is σ = 100000550784. Its totient is φ = 37500206520.

The previous prime is 65625361381. The next prime is 65625361519. The reversal of 65625361431 is 13416352656.

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

It is not a de Polignac number, because 65625361431 - 2⁷ = 65625361303 is a prime.

It is a super-2 number, since 2×65625361431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65625362431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562508585 + ... + 1562508626.

It is an arithmetic number, because the mean of its divisors is an integer number (12500068848).

Almost surely, 2^65625361431 is an apocalyptic number.

65625361431 is a deficient number, since it is larger than the sum of its proper divisors (34375189353).

65625361431 is a wasteful number, since it uses less digits than its factorization.

65625361431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125017221.

The product of its digits is 388800, while the sum is 42.

The spelling of 65625361431 in words is "sixty-five billion, six hundred twenty-five million, three hundred sixty-one thousand, four hundred thirty-one".