11778950739 has 8 divisors (see below), whose sum is σ = 16388105472. Its totient is φ = 7511214920.

The previous prime is 11778950723. The next prime is 11778950753. The reversal of 11778950739 is 93705987711.

It is a happy number.

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 11778950739 - 2⁴ = 11778950723 is a prime.

It is a super-2 number, since 2×11778950739² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11778950759) 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, 85354647 + ... + 85354784.

It is an arithmetic number, because the mean of its divisors is an integer number (2048513184).

Almost surely, 2^11778950739 is an apocalyptic number.

11778950739 is a deficient number, since it is larger than the sum of its proper divisors (4609154733).

11778950739 is a wasteful number, since it uses less digits than its factorization.

11778950739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170709457.

The product of its (nonzero) digits is 3333960, while the sum is 57.

The spelling of 11778950739 in words is "eleven billion, seven hundred seventy-eight million, nine hundred fifty thousand, seven hundred thirty-nine".