38987772429 has 8 divisors (see below), whose sum is σ = 51995552832. Its totient is φ = 25985920160.

The previous prime is 38987772413. The next prime is 38987772457. The reversal of 38987772429 is 92427778983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38987772429 - 2⁴ = 38987772413 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38987772429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38987771429) 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, 1466664 + ... + 1493009.

It is an arithmetic number, because the mean of its divisors is an integer number (6499444104).

Almost surely, 2^38987772429 is an apocalyptic number.

It is an amenable number.

38987772429 is a deficient number, since it is larger than the sum of its proper divisors (13007780403).

38987772429 is a wasteful number, since it uses less digits than its factorization.

38987772429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964067.

The product of its digits is 85349376, while the sum is 66.

The spelling of 38987772429 in words is "thirty-eight billion, nine hundred eighty-seven million, seven hundred seventy-two thousand, four hundred twenty-nine".