40554654621 has 8 divisors (see below), whose sum is σ = 58232324640. Its totient is φ = 24956710512.

The previous prime is 40554654607. The next prime is 40554654737. The reversal of 40554654621 is 12645645504.

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

It is not a de Polignac number, because 40554654621 - 2⁷ = 40554654493 is a prime.

It is a super-2 number, since 2×40554654621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40554654601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519931431 + ... + 519931508.

It is an arithmetic number, because the mean of its divisors is an integer number (7279040580).

Almost surely, 2^40554654621 is an apocalyptic number.

It is an amenable number.

40554654621 is a deficient number, since it is larger than the sum of its proper divisors (17677670019).

40554654621 is a wasteful number, since it uses less digits than its factorization.

40554654621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039862955.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 40554654621 in words is "forty billion, five hundred fifty-four million, six hundred fifty-four thousand, six hundred twenty-one".