387667394131 has 4 divisors (see below), whose sum is σ = 391505685264. Its totient is φ = 383829103000.

The previous prime is 387667394111. The next prime is 387667394173. The reversal of 387667394131 is 131493766783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131493766783 = 101 ⋅1301918483.

It is a cyclic number.

It is not a de Polignac number, because 387667394131 - 2⁷ = 387667394003 is a prime.

It is a super-2 number, since 2×387667394131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387667394111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919145415 + ... + 1919145616.

It is an arithmetic number, because the mean of its divisors is an integer number (97876421316).

Almost surely, 2^387667394131 is an apocalyptic number.

387667394131 is a deficient number, since it is larger than the sum of its proper divisors (3838291133).

387667394131 is a wasteful number, since it uses less digits than its factorization.

387667394131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838291132.

The product of its digits is 13716864, while the sum is 58.

The spelling of 387667394131 in words is "three hundred eighty-seven billion, six hundred sixty-seven million, three hundred ninety-four thousand, one hundred thirty-one".