51346652072 has 16 divisors (see below), whose sum is σ = 96286425300. Its totient is φ = 25670272000.

The previous prime is 51346652057. The next prime is 51346652089. The reversal of 51346652072 is 27025664315.

It can be written as a sum of positive squares in 2 ways, for example, as 35708149156 + 15638502916 = 188966^2 + 125054^2 .

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, 309497 + ... + 445512.

Almost surely, 2^51346652072 is an apocalyptic number.

It is an amenable number.

51346652072 is a deficient number, since it is larger than the sum of its proper divisors (44939773228).

51346652072 is a wasteful number, since it uses less digits than its factorization.

51346652072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763516 (or 763512 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 51346652072 in words is "fifty-one billion, three hundred forty-six million, six hundred fifty-two thousand, seventy-two".