7702197661 has 8 divisors (see below), whose sum is σ = 7813850624. Its totient is φ = 7590710880.

The previous prime is 7702197653. The next prime is 7702197691. The reversal of 7702197661 is 1667912077.

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 7702197661 - 2³ = 7702197653 is a prime.

It is a super-2 number, since 2×7702197661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7702197691) 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, 53380 + ... + 135106.

It is an arithmetic number, because the mean of its divisors is an integer number (976731328).

Almost surely, 2^7702197661 is an apocalyptic number.

It is an amenable number.

7702197661 is a deficient number, since it is larger than the sum of its proper divisors (111652963).

7702197661 is a wasteful number, since it uses less digits than its factorization.

7702197661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83091.

The product of its (nonzero) digits is 222264, while the sum is 46.

The square root of 7702197661 is about 87762.1653162683. The cubic root of 7702197661 is about 1974.8686692354.

The spelling of 7702197661 in words is "seven billion, seven hundred two million, one hundred ninety-seven thousand, six hundred sixty-one".