7742130774 has 32 divisors (see below), whose sum is σ = 18267150336. Its totient is φ = 2140680960.

The previous prime is 7742130751. The next prime is 7742130817. The reversal of 7742130774 is 4770312477.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2971867 + ... + 2974470.

It is an arithmetic number, because the mean of its divisors is an integer number (570848448).

Almost surely, 2^7742130774 is an apocalyptic number.

7742130774 is an abundant number, since it is smaller than the sum of its proper divisors (10525019562).

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

7742130774 is a wasteful number, since it uses less digits than its factorization.

7742130774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946380.

The product of its (nonzero) digits is 230496, while the sum is 42.

The square root of 7742130774 is about 87989.3787567568. The cubic root of 7742130774 is about 1978.2757813763.

The spelling of 7742130774 in words is "seven billion, seven hundred forty-two million, one hundred thirty thousand, seven hundred seventy-four".