7691993520 has 40 divisors (see below), whose sum is σ = 23845180656. Its totient is φ = 2051198208.

The previous prime is 7691993503. The next prime is 7691993531. The reversal of 7691993520 is 253991967.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16024747 + ... + 16025226.

Almost surely, 2^7691993520 is an apocalyptic number.

It is an amenable number.

7691993520 is an abundant number, since it is smaller than the sum of its proper divisors (16153187136).

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

7691993520 is a wasteful number, since it uses less digits than its factorization.

7691993520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32049989 (or 32049983 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 7691993520 is about 87704.0108546924. The cubic root of 7691993520 is about 1973.9961587699.

The spelling of 7691993520 in words is "seven billion, six hundred ninety-one million, nine hundred ninety-three thousand, five hundred twenty".