75641913401 has 4 divisors (see below), whose sum is σ = 75721286772. Its totient is φ = 75562540032.

The previous prime is 75641913383. The next prime is 75641913407. The reversal of 75641913401 is 10431914657.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39799851001 + 35842062400 = 199499^2 + 189320^2 .

It is a cyclic number.

It is not a de Polignac number, because 75641913401 - 2²⁶ = 75574804537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75641913407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39685256 + ... + 39687161.

It is an arithmetic number, because the mean of its divisors is an integer number (18930321693).

Almost surely, 2^75641913401 is an apocalyptic number.

It is an amenable number.

75641913401 is a deficient number, since it is larger than the sum of its proper divisors (79373371).

75641913401 is an equidigital number, since it uses as much as digits as its factorization.

75641913401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79373370.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 75641913401 in words is "seventy-five billion, six hundred forty-one million, nine hundred thirteen thousand, four hundred one".