75100991977 has 8 divisors (see below), whose sum is σ = 81934388352. Its totient is φ = 68268601200.

The previous prime is 75100991939. The next prime is 75100991981. The reversal of 75100991977 is 77919900157.

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

It is a cyclic number.

It is not a de Polignac number, because 75100991977 - 2¹⁵ = 75100959209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75100998977) 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, 90774 + ... + 398047.

It is an arithmetic number, because the mean of its divisors is an integer number (10241798544).

Almost surely, 2^75100991977 is an apocalyptic number.

It is an amenable number.

75100991977 is a deficient number, since it is larger than the sum of its proper divisors (6833396375).

75100991977 is a wasteful number, since it uses less digits than its factorization.

75100991977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502799.

The product of its (nonzero) digits is 1250235, while the sum is 55.

The spelling of 75100991977 in words is "seventy-five billion, one hundred million, nine hundred ninety-one thousand, nine hundred seventy-seven".