40686542252 has 24 divisors (see below), whose sum is σ = 72455411952. Its totient is φ = 19988072000.

The previous prime is 40686542213. The next prime is 40686542321. The reversal of 40686542252 is 25224568604.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331463 + ... + 437310.

It is an arithmetic number, because the mean of its divisors is an integer number (3018975498).

Almost surely, 2^40686542252 is an apocalyptic number.

It is an amenable number.

40686542252 is a deficient number, since it is larger than the sum of its proper divisors (31768869700).

40686542252 is a wasteful number, since it uses less digits than its factorization.

40686542252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769009 (or 769007 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 40686542252 in words is "forty billion, six hundred eighty-six million, five hundred forty-two thousand, two hundred fifty-two".