40351499894 has 8 divisors (see below), whose sum is σ = 60698716200. Its totient is φ = 20118594496.

The previous prime is 40351499879. The next prime is 40351499917. The reversal of 40351499894 is 49899415304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40351499894² (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 3 ways as a sum of consecutive naturals, for example, 28576844 + ... + 28578255.

It is an arithmetic number, because the mean of its divisors is an integer number (7587339525).

Almost surely, 2^40351499894 is an apocalyptic number.

40351499894 is a deficient number, since it is larger than the sum of its proper divisors (20347216306).

40351499894 is a wasteful number, since it uses less digits than its factorization.

40351499894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57155454.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 40351499894 in words is "forty billion, three hundred fifty-one million, four hundred ninety-nine thousand, eight hundred ninety-four".