67636976397 has 16 divisors (see below), whose sum is σ = 94988290560. Its totient is φ = 42691450032.

The previous prime is 67636976389. The next prime is 67636976401. The reversal of 67636976397 is 79367963676.

It is not a de Polignac number, because 67636976397 - 2³ = 67636976389 is a prime.

It is a super-2 number, since 2×67636976397² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67636976327) 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, 277603 + ... + 460800.

It is an arithmetic number, because the mean of its divisors is an integer number (5936768160).

Almost surely, 2^67636976397 is an apocalyptic number.

It is an amenable number.

67636976397 is a deficient number, since it is larger than the sum of its proper divisors (27351314163).

67636976397 is a wasteful number, since it uses less digits than its factorization.

67636976397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740032.

The product of its digits is 324060912, while the sum is 69.

The spelling of 67636976397 in words is "sixty-seven billion, six hundred thirty-six million, nine hundred seventy-six thousand, three hundred ninety-seven".