7657243061 has 8 divisors (see below), whose sum is σ = 8253190680. Its totient is φ = 7062285312.

The previous prime is 7657243049. The next prime is 7657243063. The reversal of 7657243061 is 1603427567.

It can be written as a sum of positive squares in 4 ways, for example, as 862538161 + 6794704900 = 29369^2 + 82430^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7657243061 - 2⁶ = 7657242997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7657243063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231356 + ... + 262373.

It is an arithmetic number, because the mean of its divisors is an integer number (1031648835).

Almost surely, 2^7657243061 is an apocalyptic number.

It is an amenable number.

7657243061 is a deficient number, since it is larger than the sum of its proper divisors (595947619).

7657243061 is a wasteful number, since it uses less digits than its factorization.

7657243061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494935.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 7657243061 is about 87505.6744502892. The cubic root of 7657243061 is about 1971.0190010235.

The spelling of 7657243061 in words is "seven billion, six hundred fifty-seven million, two hundred forty-three thousand, sixty-one".