38720428988735 has 32 divisors (see below), whose sum is σ = 52983493500672. Its totient is φ = 26910897684480.

The previous prime is 38720428988729. The next prime is 38720428988737. The reversal of 38720428988735 is 53788982402783.

It is not a de Polignac number, because 38720428988735 - 2⁶ = 38720428988671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720428988737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45726362 + ... + 46565448.

It is an arithmetic number, because the mean of its divisors is an integer number (1655734171896).

Almost surely, 2^{38720428988735} is an apocalyptic number.

38720428988735 is a deficient number, since it is larger than the sum of its proper divisors (14263064511937).

38720428988735 is a wasteful number, since it uses less digits than its factorization.

38720428988735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880883.

The product of its (nonzero) digits is 1300561920, while the sum is 74.

The spelling of 38720428988735 in words is "thirty-eight trillion, seven hundred twenty billion, four hundred twenty-eight million, nine hundred eighty-eight thousand, seven hundred thirty-five".