625406672034 has 24 divisors (see below), whose sum is σ = 1377261690012. Its totient is φ = 205051367520.

The previous prime is 625406672021. The next prime is 625406672041. The reversal of 625406672034 is 430276604526.

625406672034 is a `hidden beast` number, since 6 + 2 + 540 + 6 + 6 + 72 + 0 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 624913965225 + 492706809 = 790515^2 + 22197^2 .

It is a super-2 number, since 2×625406672034² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284792469 + ... + 284794664.

Almost surely, 2^625406672034 is an apocalyptic number.

625406672034 is an abundant number, since it is smaller than the sum of its proper divisors (751855017978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625406672034 is a wasteful number, since it uses less digits than its factorization.

625406672034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569587202 (or 569587199 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 625406672034 in words is "six hundred twenty-five billion, four hundred six million, six hundred seventy-two thousand, thirty-four".