40518598390 has 32 divisors (see below), whose sum is σ = 76793137920. Its totient is φ = 15350205024.

The previous prime is 40518598369. The next prime is 40518598403. The reversal of 40518598390 is 9389581504.

It is a super-2 number, since 2×40518598390² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715039 + ... + 769621.

It is an arithmetic number, because the mean of its divisors is an integer number (2399785560).

Almost surely, 2^40518598390 is an apocalyptic number.

40518598390 is a deficient number, since it is larger than the sum of its proper divisors (36274539530).

40518598390 is a wasteful number, since it uses less digits than its factorization.

40518598390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58516.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 40518598390 in words is "forty billion, five hundred eighteen million, five hundred ninety-eight thousand, three hundred ninety".