76021211897 has 4 divisors (see below), whose sum is σ = 76122439296. Its totient is φ = 75919984500.

The previous prime is 76021211887. The next prime is 76021211933. The reversal of 76021211897 is 79811212067.

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 76021211897 - 2⁸ = 76021211641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76021211807) 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, 50612573 + ... + 50614074.

It is an arithmetic number, because the mean of its divisors is an integer number (19030609824).

Almost surely, 2^76021211897 is an apocalyptic number.

It is an amenable number.

76021211897 is a deficient number, since it is larger than the sum of its proper divisors (101227399).

76021211897 is a wasteful number, since it uses less digits than its factorization.

76021211897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101227398.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 76021211897 in words is "seventy-six billion, twenty-one million, two hundred eleven thousand, eight hundred ninety-seven".