7725676782 has 16 divisors (see below), whose sum is σ = 15474737232. Its totient is φ = 2571328320.

The previous prime is 7725676753. The next prime is 7725676789. The reversal of 7725676782 is 2876765277.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7725676789) 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, 970023 + ... + 977954.

It is an arithmetic number, because the mean of its divisors is an integer number (967171077).

Almost surely, 2^7725676782 is an apocalyptic number.

7725676782 is an abundant number, since it is smaller than the sum of its proper divisors (7749060450).

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

7725676782 is a wasteful number, since it uses less digits than its factorization.

7725676782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948643.

The product of its digits is 13829760, while the sum is 57.

The square root of 7725676782 is about 87895.8291501935. The cubic root of 7725676782 is about 1976.8733414246.

The spelling of 7725676782 in words is "seven billion, seven hundred twenty-five million, six hundred seventy-six thousand, seven hundred eighty-two".