75109678623 has 40 divisors (see below), whose sum is σ = 133804796928. Its totient is φ = 41053730256.

The previous prime is 75109678571. The next prime is 75109678673. The reversal of 75109678623 is 32687690157.

75109678623 is a `hidden beast` number, since 7 + 5 + 1 + 0 + 9 + 6 + 7 + 8 + 623 = 666.

It is not a de Polignac number, because 75109678623 - 2⁸ = 75109678367 is a prime.

It is a super-2 number, since 2×75109678623² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75109678623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75109678673) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2866711 + ... + 2892792.

Almost surely, 2^75109678623 is an apocalyptic number.

75109678623 is a deficient number, since it is larger than the sum of its proper divisors (58695118305).

75109678623 is a wasteful number, since it uses less digits than its factorization.

75109678623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759545 (or 5759536 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 75109678623 in words is "seventy-five billion, one hundred nine million, six hundred seventy-eight thousand, six hundred twenty-three".