75801579479 has 2 divisors, whose sum is σ = 75801579480. Its totient is φ = 75801579478.

The previous prime is 75801579457. The next prime is 75801579509. The reversal of 75801579479 is 97497510857.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75801579479 - 2³² = 71506612183 is a prime.

It is a super-2 number, since 2×75801579479² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75801579439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37900789739 + 37900789740.

It is an arithmetic number, because the mean of its divisors is an integer number (37900789740).

Almost surely, 2^75801579479 is an apocalyptic number.

75801579479 is a deficient number, since it is larger than the sum of its proper divisors (1).

75801579479 is an equidigital number, since it uses as much as digits as its factorization.

75801579479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22226400, while the sum is 62.

The spelling of 75801579479 in words is "seventy-five billion, eight hundred one million, five hundred seventy-nine thousand, four hundred seventy-nine".