51151670760961 has 4 divisors (see below), whose sum is σ = 52341244499632. Its totient is φ = 49962097022292.

The previous prime is 51151670760959. The next prime is 51151670760997. The reversal of 51151670760961 is 16906707615115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51151670760961 - 2¹ = 51151670760959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51151670760901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594786869271 + ... + 594786869356.

It is an arithmetic number, because the mean of its divisors is an integer number (13085311124908).

Almost surely, 2^{51151670760961} is an apocalyptic number.

It is an amenable number.

51151670760961 is a deficient number, since it is larger than the sum of its proper divisors (1189573738671).

51151670760961 is a wasteful number, since it uses less digits than its factorization.

51151670760961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189573738670.

The product of its (nonzero) digits is 2381400, while the sum is 55.

The spelling of 51151670760961 in words is "fifty-one trillion, one hundred fifty-one billion, six hundred seventy million, seven hundred sixty thousand, nine hundred sixty-one".