76970000821 has 16 divisors (see below), whose sum is σ = 88191922176. Its totient is φ = 65804777136.

The previous prime is 76970000801. The next prime is 76970000837. The reversal of 76970000821 is 12800007967.

It is not a de Polignac number, because 76970000821 - 2³¹ = 74822517173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76970000801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8337210 + ... + 8346436.

It is an arithmetic number, because the mean of its divisors is an integer number (5511995136).

Almost surely, 2^76970000821 is an apocalyptic number.

It is an amenable number.

76970000821 is a deficient number, since it is larger than the sum of its proper divisors (11221921355).

76970000821 is a wasteful number, since it uses less digits than its factorization.

76970000821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12168.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 76970000821 in words is "seventy-six billion, nine hundred seventy million, eight hundred twenty-one", and thus it is an aban number.