39920078580 has 48 divisors (see below), whose sum is σ = 111793820544. Its totient is φ = 10643678080.

The previous prime is 39920078533. The next prime is 39920078581. The reversal of 39920078580 is 8587002993.

39920078580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×39920078580² (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 (39920078581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358474 + ... + 456446.

It is an arithmetic number, because the mean of its divisors is an integer number (2329037928).

Almost surely, 2^39920078580 is an apocalyptic number.

39920078580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39920078580 is an abundant number, since it is smaller than the sum of its proper divisors (71873741964).

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

39920078580 is a wasteful number, since it uses less digits than its factorization.

39920078580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104776 (or 104774 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 39920078580 in words is "thirty-nine billion, nine hundred twenty million, seventy-eight thousand, five hundred eighty".