11851193974 has 16 divisors (see below), whose sum is σ = 17837511120. Its totient is φ = 5905380960.

The previous prime is 11851193971. The next prime is 11851193983. The reversal of 11851193974 is 47939115811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11851193971) 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, 1172904 + ... + 1182964.

It is an arithmetic number, because the mean of its divisors is an integer number (1114844445).

Almost surely, 2^11851193974 is an apocalyptic number.

11851193974 is a deficient number, since it is larger than the sum of its proper divisors (5986317146).

11851193974 is a wasteful number, since it uses less digits than its factorization.

11851193974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015.

The product of its digits is 272160, while the sum is 49.

The spelling of 11851193974 in words is "eleven billion, eight hundred fifty-one million, one hundred ninety-three thousand, nine hundred seventy-four".