7100921725 has 12 divisors (see below), whose sum is σ = 8806484340. Its totient is φ = 5679872000.

The previous prime is 7100921717. The next prime is 7100921753. The reversal of 7100921725 is 5271290017.

It can be written as a sum of positive squares in 6 ways, for example, as 1468269124 + 5632652601 = 38318^2 + 75051^2 .

It is not a de Polignac number, because 7100921725 - 2³ = 7100921717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184125 + ... + 219325.

It is an arithmetic number, because the mean of its divisors is an integer number (733873695).

Almost surely, 2^7100921725 is an apocalyptic number.

It is an amenable number.

7100921725 is a deficient number, since it is larger than the sum of its proper divisors (1705562615).

7100921725 is a wasteful number, since it uses less digits than its factorization.

7100921725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43280 (or 43275 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 7100921725 is about 84266.9669858836. The cubic root of 7100921725 is about 1922.0805106782.

The spelling of 7100921725 in words is "seven billion, one hundred million, nine hundred twenty-one thousand, seven hundred twenty-five".