51277324542 has 16 divisors (see below), whose sum is σ = 102919615632. Its totient is φ = 17031613760.

The previous prime is 51277324541. The next prime is 51277324597. The reversal of 51277324542 is 24542377215.

It is a junction number, because it is equal to n+sod(n) for n = 51277324494 and 51277324503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51277324541) 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, 15205113 + ... + 15208484.

It is an arithmetic number, because the mean of its divisors is an integer number (6432475977).

Almost surely, 2^51277324542 is an apocalyptic number.

51277324542 is an abundant number, since it is smaller than the sum of its proper divisors (51642291090).

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

51277324542 is a wasteful number, since it uses less digits than its factorization.

51277324542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30413883.

The product of its digits is 470400, while the sum is 42.

The spelling of 51277324542 in words is "fifty-one billion, two hundred seventy-seven million, three hundred twenty-four thousand, five hundred forty-two".