634525340231319 has 16 divisors (see below), whose sum is σ = 899746737965568. Its totient is φ = 396379654527872.

The previous prime is 634525340231297. The next prime is 634525340231323. The reversal of 634525340231319 is 913132043525436.

It is a cyclic number.

It is not a de Polignac number, because 634525340231319 - 2¹² = 634525340227223 is a prime.

It is a super-2 number, since 2×634525340231319² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634525340231219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27404555247 + ... + 27404578400.

It is an arithmetic number, because the mean of its divisors is an integer number (56234171122848).

Almost surely, 2^{634525340231319} is an apocalyptic number.

634525340231319 is a deficient number, since it is larger than the sum of its proper divisors (265221397734249).

634525340231319 is a wasteful number, since it uses less digits than its factorization.

634525340231319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54809133894.

The product of its (nonzero) digits is 6998400, while the sum is 51.

The spelling of 634525340231319 in words is "six hundred thirty-four trillion, five hundred twenty-five billion, three hundred forty million, two hundred thirty-one thousand, three hundred nineteen".