7849199700 has 90 divisors (see below), whose sum is σ = 25444030766. Its totient is φ = 2093117760.

The previous prime is 7849199651. The next prime is 7849199707. The reversal of 7849199700 is 79919487.

It can be written as a sum of positive squares in 3 ways, for example, as 287505936 + 7561693764 = 16956^2 + 86958^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7849199707) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 476419 + ... + 492618.

Almost surely, 2^7849199700 is an apocalyptic number.

It is an amenable number.

7849199700 is an abundant number, since it is smaller than the sum of its proper divisors (17594831066).

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

7849199700 is a wasteful number, since it uses less digits than its factorization.

7849199700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969063 (or 969047 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 7849199700 is about 88595.7092640496. The cubic root of 7849199700 is about 1987.3535100290.

The spelling of 7849199700 in words is "seven billion, eight hundred forty-nine million, one hundred ninety-nine thousand, seven hundred".