11715913078 has 4 divisors (see below), whose sum is σ = 17573869620. Its totient is φ = 5857956538.

The previous prime is 11715913009. The next prime is 11715913091. The reversal of 11715913078 is 87031951711.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×11715913078³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2928978268 + ... + 2928978271.

It is an arithmetic number, because the mean of its divisors is an integer number (4393467405).

Almost surely, 2^11715913078 is an apocalyptic number.

11715913078 is a deficient number, since it is larger than the sum of its proper divisors (5857956542).

11715913078 is an equidigital number, since it uses as much as digits as its factorization.

11715913078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857956541.

The product of its (nonzero) digits is 52920, while the sum is 43.

The spelling of 11715913078 in words is "eleven billion, seven hundred fifteen million, nine hundred thirteen thousand, seventy-eight".