39387487420 has 24 divisors (see below), whose sum is σ = 84274362144. Its totient is φ = 15457730496.

The previous prime is 39387487313. The next prime is 39387487427. The reversal of 39387487420 is 2478478393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39387487427) 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, 18577944 + ... + 18580063.

It is an arithmetic number, because the mean of its divisors is an integer number (3511431756).

Almost surely, 2^39387487420 is an apocalyptic number.

It is an amenable number.

39387487420 is an abundant number, since it is smaller than the sum of its proper divisors (44886874724).

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

39387487420 is a wasteful number, since it uses less digits than its factorization.

39387487420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37158069 (or 37158067 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 39387487420 in words is "thirty-nine billion, three hundred eighty-seven million, four hundred eighty-seven thousand, four hundred twenty".