38987797663898 has 16 divisors (see below), whose sum is σ = 58524368844480. Its totient is φ = 19479679847136.

The previous prime is 38987797663897. The next prime is 38987797663901. The reversal of 38987797663898 is 89836679778983.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38987797663897) 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, 13948661 + ... + 16508807.

It is an arithmetic number, because the mean of its divisors is an integer number (3657773052780).

Almost surely, 2^{38987797663898} is an apocalyptic number.

38987797663898 is a deficient number, since it is larger than the sum of its proper divisors (19536571180582).

38987797663898 is a wasteful number, since it uses less digits than its factorization.

38987797663898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565701.

The product of its digits is 331838373888, while the sum is 98.

The spelling of 38987797663898 in words is "thirty-eight trillion, nine hundred eighty-seven billion, seven hundred ninety-seven million, six hundred sixty-three thousand, eight hundred ninety-eight".