39898137762 has 160 divisors (see below), whose sum is σ = 106155371520. Its totient is φ = 10959960960.

The previous prime is 39898137733. The next prime is 39898137817. The reversal of 39898137762 is 26773189893.

It is a super-2 number, since 2×39898137762² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 39898137762.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5515564 + ... + 5522792.

It is an arithmetic number, because the mean of its divisors is an integer number (663471072).

Almost surely, 2^39898137762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39898137762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53077685760).

39898137762 is an abundant number, since it is smaller than the sum of its proper divisors (66257233758).

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

39898137762 is a wasteful number, since it uses less digits than its factorization.

39898137762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438 (or 7429 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 39898137762 in words is "thirty-nine billion, eight hundred ninety-eight million, one hundred thirty-seven thousand, seven hundred sixty-two".