7649857142 has 8 divisors (see below), whose sum is σ = 11488146600. Its totient is φ = 3820474944.

The previous prime is 7649857141. The next prime is 7649857147. The reversal of 7649857142 is 2417589467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7649857141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224667 + ... + 2228102.

It is an arithmetic number, because the mean of its divisors is an integer number (1436018325).

Almost surely, 2^7649857142 is an apocalyptic number.

7649857142 is a deficient number, since it is larger than the sum of its proper divisors (3838289458).

7649857142 is a wasteful number, since it uses less digits than its factorization.

7649857142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453630.

The product of its digits is 3386880, while the sum is 53.

The square root of 7649857142 is about 87463.4617540376. The cubic root of 7649857142 is about 1970.3850709552.

The spelling of 7649857142 in words is "seven billion, six hundred forty-nine million, eight hundred fifty-seven thousand, one hundred forty-two".