7857542900 has 36 divisors (see below), whose sum is σ = 17792215392. Its totient is φ = 3006363360.

The previous prime is 7857542893. The next prime is 7857542933. The reversal of 7857542900 is 92457587.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1705862 + ... + 1710461.

Almost surely, 2^7857542900 is an apocalyptic number.

It is an amenable number.

7857542900 is an abundant number, since it is smaller than the sum of its proper divisors (9934672492).

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

7857542900 is a wasteful number, since it uses less digits than its factorization.

7857542900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416360 (or 3416353 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 7857542900 is about 88642.7825601160. The cubic root of 7857542900 is about 1988.0574041454.

The spelling of 7857542900 in words is "seven billion, eight hundred fifty-seven million, five hundred forty-two thousand, nine hundred".