7742490693 has 24 divisors (see below), whose sum is σ = 12494768832. Its totient is φ = 4163134464.

The previous prime is 7742490683. The next prime is 7742490733. The reversal of 7742490693 is 3960942477.

It is not a de Polignac number, because 7742490693 - 2⁵ = 7742490661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7742490683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1660221 + ... + 1664877.

It is an arithmetic number, because the mean of its divisors is an integer number (520615368).

Almost surely, 2^7742490693 is an apocalyptic number.

It is an amenable number.

7742490693 is a deficient number, since it is larger than the sum of its proper divisors (4752278139).

7742490693 is an frugal number, since it uses more digits than its factorization.

7742490693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9341 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 51.

The square root of 7742490693 is about 87991.4239741578. The cubic root of 7742490693 is about 1978.3064365033.

The spelling of 7742490693 in words is "seven billion, seven hundred forty-two million, four hundred ninety thousand, six hundred ninety-three".