75810998691 has 6 divisors (see below), whose sum is σ = 109504775900. Its totient is φ = 50540665788.

The previous prime is 75810998689. The next prime is 75810998693. The reversal of 75810998691 is 19689901857.

It is an interprime number because it is at equal distance from previous prime (75810998689) and next prime (75810998693).

It is not a de Polignac number, because 75810998691 - 2¹ = 75810998689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75810998693) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4211722141 + ... + 4211722158.

Almost surely, 2^75810998691 is an apocalyptic number.

75810998691 is a deficient number, since it is larger than the sum of its proper divisors (33693777209).

75810998691 is a wasteful number, since it uses less digits than its factorization.

75810998691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8423444305 (or 8423444302 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 75810998691 in words is "seventy-five billion, eight hundred ten million, nine hundred ninety-eight thousand, six hundred ninety-one".