51074192015 has 64 divisors (see below), whose sum is σ = 79192028160. Its totient is φ = 30684272640.

The previous prime is 51074191999. The next prime is 51074192017. The reversal of 51074192015 is 51029147015.

It is a happy number.

It is a Cunningham number, because it is equal to 225996²-1.

It is not a de Polignac number, because 51074192015 - 2⁴ = 51074191999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51074192017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6549959 + ... + 6557751.

It is an arithmetic number, because the mean of its divisors is an integer number (1237375440).

Almost surely, 2^51074192015 is an apocalyptic number.

51074192015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51074192015 is a deficient number, since it is larger than the sum of its proper divisors (28117836145).

51074192015 is a wasteful number, since it uses less digits than its factorization.

51074192015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8432.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 51074192015 in words is "fifty-one billion, seventy-four million, one hundred ninety-two thousand, fifteen".