11778700951 has 16 divisors (see below), whose sum is σ = 12456770560. Its totient is φ = 11106577440.

The previous prime is 11778700943. The next prime is 11778701003. The reversal of 11778700951 is 15900787711.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11778700951 - 2³ = 11778700943 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 (11778700931) 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, 4398625 + ... + 4401301.

It is an arithmetic number, because the mean of its divisors is an integer number (778548160).

Almost surely, 2^11778700951 is an apocalyptic number.

11778700951 is a deficient number, since it is larger than the sum of its proper divisors (678069609).

11778700951 is a wasteful number, since it uses less digits than its factorization.

11778700951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694.

The product of its (nonzero) digits is 123480, while the sum is 46.

The spelling of 11778700951 in words is "eleven billion, seven hundred seventy-eight million, seven hundred thousand, nine hundred fifty-one".