75112615551 has 8 divisors (see below), whose sum is σ = 100153403440. Its totient is φ = 50073452352.

The previous prime is 75112615549. The next prime is 75112615609. The reversal of 75112615551 is 15551621157.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75112615551 - 2¹ = 75112615549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75112615511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293860 + ... + 486393.

It is an arithmetic number, because the mean of its divisors is an integer number (12519175430).

Almost surely, 2^75112615551 is an apocalyptic number.

75112615551 is a deficient number, since it is larger than the sum of its proper divisors (25040787889).

75112615551 is a wasteful number, since it uses less digits than its factorization.

75112615551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812345.

The product of its digits is 52500, while the sum is 39.

The spelling of 75112615551 in words is "seventy-five billion, one hundred twelve million, six hundred fifteen thousand, five hundred fifty-one".