76838217906 has 16 divisors (see below), whose sum is σ = 153705027744. Its totient is φ = 25607973984.

The previous prime is 76838217899. The next prime is 76838217913. The reversal of 76838217906 is 60971283867.

It is an interprime number because it is at equal distance from previous prime (76838217899) and next prime (76838217913).

It is a super-2 number, since 2×76838217906² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156315 + ... + 1220958.

It is an arithmetic number, because the mean of its divisors is an integer number (9606564234).

Almost surely, 2^76838217906 is an apocalyptic number.

76838217906 is an abundant number, since it is smaller than the sum of its proper divisors (76866809838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76838217906 is a wasteful number, since it uses less digits than its factorization.

76838217906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382665.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 76838217906 in words is "seventy-six billion, eight hundred thirty-eight million, two hundred seventeen thousand, nine hundred six".