76373993399881 has 4 divisors (see below), whose sum is σ = 76378262267664. Its totient is φ = 76369724532100.

The previous prime is 76373993399849. The next prime is 76373993399927. The reversal of 76373993399881 is 18899339937367.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76373993399881 - 2⁵ = 76373993399849 is a prime.

It is a super-2 number, since 2×76373993399881² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (85) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76373993399581) 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, 2134407055 + ... + 2134442836.

It is an arithmetic number, because the mean of its divisors is an integer number (19094565566916).

Almost surely, 2^{76373993399881} is an apocalyptic number.

It is an amenable number.

76373993399881 is a deficient number, since it is larger than the sum of its proper divisors (4268867783).

76373993399881 is a wasteful number, since it uses less digits than its factorization.

76373993399881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268867782.

The product of its digits is 9999593856, while the sum is 85.

The spelling of 76373993399881 in words is "seventy-six trillion, three hundred seventy-three billion, nine hundred ninety-three million, three hundred ninety-nine thousand, eight hundred eighty-one".