51234154355102 has 4 divisors (see below), whose sum is σ = 76851231532656. Its totient is φ = 25617077177550.

The previous prime is 51234154355071. The next prime is 51234154355107. The reversal of 51234154355102 is 20155345143215.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51234154355102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234154355107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12808538588774 + ... + 12808538588777.

It is an arithmetic number, because the mean of its divisors is an integer number (19212807883164).

Almost surely, 2^{51234154355102} is an apocalyptic number.

51234154355102 is a deficient number, since it is larger than the sum of its proper divisors (25617077177554).

51234154355102 is a wasteful number, since it uses less digits than its factorization.

51234154355102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25617077177553.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 51234154355102 its reverse (20155345143215), we get a palindrome (71389499498317).

The spelling of 51234154355102 in words is "fifty-one trillion, two hundred thirty-four billion, one hundred fifty-four million, three hundred fifty-five thousand, one hundred two".