625788074427 has 32 divisors (see below), whose sum is σ = 891068387328. Its totient is φ = 389767737216.

The previous prime is 625788074377. The next prime is 625788074477. The reversal of 625788074427 is 724470887526.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (625788074377) and next prime (625788074477).

It is not a de Polignac number, because 625788074427 - 2¹⁰ = 625788073403 is a prime.

It is a super-2 number, since 2×625788074427² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (625788074477) 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, 431833 + ... + 1199189.

It is an arithmetic number, because the mean of its divisors is an integer number (27845887104).

Almost surely, 2^625788074427 is an apocalyptic number.

625788074427 is a deficient number, since it is larger than the sum of its proper divisors (265280312901).

625788074427 is a wasteful number, since it uses less digits than its factorization.

625788074427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767659.

The product of its (nonzero) digits is 42147840, while the sum is 60.

The spelling of 625788074427 in words is "six hundred twenty-five billion, seven hundred eighty-eight million, seventy-four thousand, four hundred twenty-seven".