51277677377641 has 64 divisors (see below), whose sum is σ = 64508151214080. Its totient is φ = 40064227568640.

The previous prime is 51277677377609. The next prime is 51277677377659. The reversal of 51277677377641 is 14677377677215.

It is not a de Polignac number, because 51277677377641 - 2⁵ = 51277677377609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51277677377141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78497616 + ... + 79148158.

It is an arithmetic number, because the mean of its divisors is an integer number (1007939862720).

Almost surely, 2^{51277677377641} is an apocalyptic number.

It is an amenable number.

51277677377641 is a deficient number, since it is larger than the sum of its proper divisors (13230473836439).

51277677377641 is a wasteful number, since it uses less digits than its factorization.

51277677377641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651086.

The product of its digits is 508243680, while the sum is 70.

The spelling of 51277677377641 in words is "fifty-one trillion, two hundred seventy-seven billion, six hundred seventy-seven million, three hundred seventy-seven thousand, six hundred forty-one".