7725693420 has 72 divisors (see below), whose sum is σ = 23552474400. Its totient is φ = 2049822720.

The previous prime is 7725693397. The next prime is 7725693433. The reversal of 7725693420 is 243965277.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72021 + ... + 143660.

It is an arithmetic number, because the mean of its divisors is an integer number (327117700).

Almost surely, 2^7725693420 is an apocalyptic number.

It is an amenable number.

7725693420 is an abundant number, since it is smaller than the sum of its proper divisors (15826780980).

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

7725693420 is a wasteful number, since it uses less digits than its factorization.

7725693420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215895 (or 215890 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 7725693420 is about 87895.9237962717. The cubic root of 7725693420 is about 1976.8747605535.

The spelling of 7725693420 in words is "seven billion, seven hundred twenty-five million, six hundred ninety-three thousand, four hundred twenty".