626451225216604 has 12 divisors (see below), whose sum is σ = 1096317737825184. Its totient is φ = 313217585837984.

The previous prime is 626451225216577. The next prime is 626451225216613. The reversal of 626451225216604 is 406612522154626.

It is a super-2 number, since 2×626451225216604² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006516977 + ... + 2006829160.

It is an arithmetic number, because the mean of its divisors is an integer number (91359811485432).

Almost surely, 2^{626451225216604} is an apocalyptic number.

It is an amenable number.

626451225216604 is a deficient number, since it is larger than the sum of its proper divisors (469866512608580).

626451225216604 is a wasteful number, since it uses less digits than its factorization.

626451225216604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013385164 (or 4013385162 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 626451225216604 in words is "six hundred twenty-six trillion, four hundred fifty-one billion, two hundred twenty-five million, two hundred sixteen thousand, six hundred four".