11977407973 has 8 divisors (see below), whose sum is σ = 12397985792. Its totient is φ = 11561928336.

The previous prime is 11977407901. The next prime is 11977407983. The reversal of 11977407973 is 37970477911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11977407973 - 2²¹ = 11975310821 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 (11977407983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269765 + ... + 1279162.

It is an arithmetic number, because the mean of its divisors is an integer number (1549748224).

Almost surely, 2^11977407973 is an apocalyptic number.

It is an amenable number.

11977407973 is a deficient number, since it is larger than the sum of its proper divisors (420577819).

11977407973 is a wasteful number, since it uses less digits than its factorization.

11977407973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549091.

The product of its (nonzero) digits is 2333772, while the sum is 55.

The spelling of 11977407973 in words is "eleven billion, nine hundred seventy-seven million, four hundred seven thousand, nine hundred seventy-three".