40591286620 has 24 divisors (see below), whose sum is σ = 85273398000. Its totient is φ = 16230477312.

The previous prime is 40591286609. The next prime is 40591286647. The reversal of 40591286620 is 2668219504.

It is a congruent number.

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, 322005 + ... + 429964.

It is an arithmetic number, because the mean of its divisors is an integer number (3553058250).

Almost surely, 2^40591286620 is an apocalyptic number.

It is an amenable number.

40591286620 is an abundant number, since it is smaller than the sum of its proper divisors (44682111380).

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

40591286620 is a wasteful number, since it uses less digits than its factorization.

40591286620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754677 (or 754675 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 40591286620 in words is "forty billion, five hundred ninety-one million, two hundred eighty-six thousand, six hundred twenty".