75510149091 has 32 divisors (see below), whose sum is σ = 112010637312. Its totient is φ = 44933374080.

The previous prime is 75510149089. The next prime is 75510149101. The reversal of 75510149091 is 19094101557.

It is a happy number.

It is not a de Polignac number, because 75510149091 - 2¹ = 75510149089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75510149291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1551361 + ... + 1599293.

It is an arithmetic number, because the mean of its divisors is an integer number (3500332416).

Almost surely, 2^75510149091 is an apocalyptic number.

75510149091 is a deficient number, since it is larger than the sum of its proper divisors (36500488221).

75510149091 is a wasteful number, since it uses less digits than its factorization.

75510149091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49283.

The product of its (nonzero) digits is 56700, while the sum is 42.

The spelling of 75510149091 in words is "seventy-five billion, five hundred ten million, one hundred forty-nine thousand, ninety-one".