7920740325 has 24 divisors (see below), whose sum is σ = 13125240288. Its totient is φ = 4214841280.

The previous prime is 7920740323. The next prime is 7920740341. The reversal of 7920740325 is 5230470297.

It is not a de Polignac number, because 7920740325 - 2¹ = 7920740323 is a prime.

It is a super-2 number, since 2×7920740325² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920740323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85974 + ... + 152423.

It is an arithmetic number, because the mean of its divisors is an integer number (546885012).

Almost surely, 2^7920740325 is an apocalyptic number.

7920740325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7920740325 is a deficient number, since it is larger than the sum of its proper divisors (5204499963).

7920740325 is a wasteful number, since it uses less digits than its factorization.

7920740325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238853 (or 238848 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 7920740325 is about 88998.5411397288. The cubic root of 7920740325 is about 1993.3730933899.

The spelling of 7920740325 in words is "seven billion, nine hundred twenty million, seven hundred forty thousand, three hundred twenty-five".