378138081087 has 12 divisors (see below), whose sum is σ = 588214792984. Its totient is φ = 232700357520.

The previous prime is 378138081071. The next prime is 378138081091. The reversal of 378138081087 is 780180831873.

378138081087 is a `hidden beast` number, since 37 + 81 + 380 + 81 + 0 + 87 = 666.

It is not a de Polignac number, because 378138081087 - 2⁴ = 378138081071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378138081007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1615974589 + ... + 1615974822.

Almost surely, 2^378138081087 is an apocalyptic number.

378138081087 is a deficient number, since it is larger than the sum of its proper divisors (210076711897).

378138081087 is a wasteful number, since it uses less digits than its factorization.

378138081087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231949430 (or 3231949427 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 378138081087 in words is "three hundred seventy-eight billion, one hundred thirty-eight million, eighty-one thousand, eighty-seven".