40164861490 has 16 divisors (see below), whose sum is σ = 77858039448. Its totient is φ = 14830102656.

The previous prime is 40164861481. The next prime is 40164861511. The reversal of 40164861490 is 9416846104.

It can be written as a sum of positive squares in 4 ways, for example, as 19032133849 + 21132727641 = 137957^2 + 145371^2 .

It is a super-2 number, since 2×40164861490² (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, 154480107 + ... + 154480366.

Almost surely, 2^40164861490 is an apocalyptic number.

40164861490 is a deficient number, since it is larger than the sum of its proper divisors (37693177958).

40164861490 is a wasteful number, since it uses less digits than its factorization.

40164861490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308960493.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 40164861490 in words is "forty billion, one hundred sixty-four million, eight hundred sixty-one thousand, four hundred ninety".