51234154411655 has 8 divisors (see below), whose sum is σ = 61499576479632. Its totient is φ = 40974929405568.

The previous prime is 51234154411631. The next prime is 51234154411681. The reversal of 51234154411655 is 55611445143215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51234154411655 - 2²² = 51234150217351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1549247282 + ... + 1549280351.

It is an arithmetic number, because the mean of its divisors is an integer number (7687447059954).

Almost surely, 2^{51234154411655} is an apocalyptic number.

51234154411655 is a deficient number, since it is larger than the sum of its proper divisors (10265422067977).

51234154411655 is a wasteful number, since it uses less digits than its factorization.

51234154411655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098530945.

The product of its digits is 1440000, while the sum is 47.

The spelling of 51234154411655 in words is "fifty-one trillion, two hundred thirty-four billion, one hundred fifty-four million, four hundred eleven thousand, six hundred fifty-five".