7849357987704 has 128 divisors (see below), whose sum is σ = 21557119334400. Its totient is φ = 2370663123840.

The previous prime is 7849357987697. The next prime is 7849357987721. The reversal of 7849357987704 is 4077897539487.

It is a super-2 number, since 2×7849357987704² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7849357987704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87666399 + ... + 87755889.

It is an arithmetic number, because the mean of its divisors is an integer number (168414994800).

Almost surely, 2^{7849357987704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7849357987704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10778559667200).

7849357987704 is an abundant number, since it is smaller than the sum of its proper divisors (13707761346696).

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

7849357987704 is a wasteful number, since it uses less digits than its factorization.

7849357987704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97905 (or 97901 counting only the distinct ones).

The product of its (nonzero) digits is 2987228160, while the sum is 78.

The spelling of 7849357987704 in words is "seven trillion, eight hundred forty-nine billion, three hundred fifty-seven million, nine hundred eighty-seven thousand, seven hundred four".