40647232080 has 1440 divisors, whose sum is σ = 186967033344. Its totient is φ = 7981535232.

The previous prime is 40647232069. The next prime is 40647232099. The reversal of 40647232080 is 8023274604.

40647232080 is a `hidden beast` number, since 4 + 0 + 647 + 2 + 3 + 2 + 0 + 8 + 0 = 666.

It is a super-2 number, since 2×40647232080² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1098573822 + ... + 1098573858.

Almost surely, 2^40647232080 is an apocalyptic number.

40647232080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40647232080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93483516672).

40647232080 is an abundant number, since it is smaller than the sum of its proper divisors (146319801264).

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

40647232080 is a wasteful number, since it uses less digits than its factorization.

40647232080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 40647232080 in words is "forty billion, six hundred forty-seven million, two hundred thirty-two thousand, eighty".