40026443555 has 24 divisors (see below), whose sum is σ = 55950124752. Its totient is φ = 27409136832.

The previous prime is 40026443533. The next prime is 40026443557. The reversal of 40026443555 is 55534462004.

It is not a de Polignac number, because 40026443555 - 2⁶ = 40026443491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40026443557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68144 + ... + 291026.

It is an arithmetic number, because the mean of its divisors is an integer number (2331255198).

Almost surely, 2^40026443555 is an apocalyptic number.

40026443555 is a deficient number, since it is larger than the sum of its proper divisors (15923681197).

40026443555 is a wasteful number, since it uses less digits than its factorization.

40026443555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223635 (or 223628 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 40026443555 in words is "forty billion, twenty-six million, four hundred forty-three thousand, five hundred fifty-five".