39888460540 has 24 divisors (see below), whose sum is σ = 88174492560. Its totient is φ = 15115627008.

The previous prime is 39888460487. The next prime is 39888460543. The reversal of 39888460540 is 4506488893.

39888460540 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 2×39888460540² (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 (39888460543) 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, 52484437 + ... + 52485196.

It is an arithmetic number, because the mean of its divisors is an integer number (3673937190).

Almost surely, 2^39888460540 is an apocalyptic number.

It is an amenable number.

39888460540 is an abundant number, since it is smaller than the sum of its proper divisors (48286032020).

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

39888460540 is a wasteful number, since it uses less digits than its factorization.

39888460540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104969661 (or 104969659 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 39888460540 in words is "thirty-nine billion, eight hundred eighty-eight million, four hundred sixty thousand, five hundred forty".