51542134216 has 64 divisors (see below), whose sum is σ = 102932786880. Its totient is φ = 24111820800.

The previous prime is 51542134201. The next prime is 51542134249. The reversal of 51542134216 is 61243124515.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18077191 + ... + 18080041.

It is an arithmetic number, because the mean of its divisors is an integer number (1608324795).

Almost surely, 2^51542134216 is an apocalyptic number.

It is an amenable number.

51542134216 is a deficient number, since it is larger than the sum of its proper divisors (51390652664).

51542134216 is a wasteful number, since it uses less digits than its factorization.

51542134216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614 (or 3610 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The spelling of 51542134216 in words is "fifty-one billion, five hundred forty-two million, one hundred thirty-four thousand, two hundred sixteen".