11957467380 has 24 divisors (see below), whose sum is σ = 33480908832. Its totient is φ = 3188657952.

The previous prime is 11957467373. The next prime is 11957467399. The reversal of 11957467380 is 8376475911.

It is a happy number.

11957467380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11957467380² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99645502 + ... + 99645621.

It is an arithmetic number, because the mean of its divisors is an integer number (1395037868).

Almost surely, 2^11957467380 is an apocalyptic number.

11957467380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11957467380 is an abundant number, since it is smaller than the sum of its proper divisors (21523441452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11957467380 is a wasteful number, since it uses less digits than its factorization.

11957467380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199291135 (or 199291133 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 11957467380 in words is "eleven billion, nine hundred fifty-seven million, four hundred sixty-seven thousand, three hundred eighty".