7157309742 has 64 divisors (see below), whose sum is σ = 17720294400. Its totient is φ = 2122727040.

The previous prime is 7157309741. The next prime is 7157309807. The reversal of 7157309742 is 2479037517.

7157309742 is a `hidden beast` number, since 7 + 1 + 573 + 0 + 9 + 74 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157309741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100267 + ... + 156102.

It is an arithmetic number, because the mean of its divisors is an integer number (276879600).

Almost surely, 2^7157309742 is an apocalyptic number.

7157309742 is an abundant number, since it is smaller than the sum of its proper divisors (10562984658).

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

7157309742 is a wasteful number, since it uses less digits than its factorization.

7157309742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256438 (or 256432 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 7157309742 is about 84600.8849953711. The cubic root of 7157309742 is about 1927.1548135058.

The spelling of 7157309742 in words is "seven billion, one hundred fifty-seven million, three hundred nine thousand, seven hundred forty-two".