40408764682 has 16 divisors (see below), whose sum is σ = 71209851552. Its totient is φ = 16954726320.

The previous prime is 40408764667. The next prime is 40408764727. The reversal of 40408764682 is 28646780404.

It is a happy number.

It is a super-2 number, since 2×40408764682² (a number of 22 digits) contains 22 as substring.

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, 70644408 + ... + 70644979.

It is an arithmetic number, because the mean of its divisors is an integer number (4450615722).

Almost surely, 2^40408764682 is an apocalyptic number.

40408764682 is a deficient number, since it is larger than the sum of its proper divisors (30801086870).

40408764682 is a wasteful number, since it uses less digits than its factorization.

40408764682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141289413.

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 40408764682 in words is "forty billion, four hundred eight million, seven hundred sixty-four thousand, six hundred eighty-two".