51542134215 has 32 divisors (see below), whose sum is σ = 96884798976. Its totient is φ = 23067807360.

The previous prime is 51542134201. The next prime is 51542134249. The reversal of 51542134215 is 51243124515.

It is not a de Polignac number, because 51542134215 - 2⁶ = 51542134151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12012339 + ... + 12016628.

It is an arithmetic number, because the mean of its divisors is an integer number (3027649968).

Almost surely, 2^51542134215 is an apocalyptic number.

51542134215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51542134215 is a deficient number, since it is larger than the sum of its proper divisors (45342664761).

51542134215 is a wasteful number, since it uses less digits than its factorization.

51542134215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24028999.

The product of its digits is 24000, while the sum is 33.

The spelling of 51542134215 in words is "fifty-one billion, five hundred forty-two million, one hundred thirty-four thousand, two hundred fifteen".