405499420505088 has 440 divisors, whose sum is σ = 1490339162454912. Its totient is φ = 106944900120576.

The previous prime is 405499420505087. The next prime is 405499420505089. The reversal of 405499420505088 is 880505024994504.

405499420505088 is a `hidden beast` number, since 4 + 0 + 5 + 4 + 9 + 9 + 42 + 0 + 505 + 0 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (405499420505087) and next prime (405499420505089).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405499420505087) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19313820 + ... + 34409627.

Almost surely, 2^{405499420505088} is an apocalyptic number.

405499420505088 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

405499420505088 is an abundant number, since it is smaller than the sum of its proper divisors (1084839741949824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405499420505088 is a wasteful number, since it uses less digits than its factorization.

405499420505088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53723499 (or 53723472 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 63.

The spelling of 405499420505088 in words is "four hundred five trillion, four hundred ninety-nine billion, four hundred twenty million, five hundred five thousand, eighty-eight".