40587378492 has 12 divisors (see below), whose sum is σ = 94703883176. Its totient is φ = 13529126160.

The previous prime is 40587378487. The next prime is 40587378493. The reversal of 40587378492 is 29487378504.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40587378493) 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, 1691140759 + ... + 1691140782.

Almost surely, 2^40587378492 is an apocalyptic number.

It is an amenable number.

40587378492 is an abundant number, since it is smaller than the sum of its proper divisors (54116504684).

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

40587378492 is a wasteful number, since it uses less digits than its factorization.

40587378492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382281548 (or 3382281546 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 40587378492 in words is "forty billion, five hundred eighty-seven million, three hundred seventy-eight thousand, four hundred ninety-two".