51034417656 has 32 divisors (see below), whose sum is σ = 135091106640. Its totient is φ = 16010797568.

The previous prime is 51034417633. The next prime is 51034417657. The reversal of 51034417656 is 65671443015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51034417657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62541771 + ... + 62542586.

Almost surely, 2^51034417656 is an apocalyptic number.

It is an amenable number.

51034417656 is an abundant number, since it is smaller than the sum of its proper divisors (84056688984).

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

51034417656 is a wasteful number, since it uses less digits than its factorization.

51034417656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125084383 (or 125084379 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 51034417656 in words is "fifty-one billion, thirty-four million, four hundred seventeen thousand, six hundred fifty-six".