7261981476825 has 24 divisors (see below), whose sum is σ = 12006677927200. Its totient is φ = 3872991663360.

The previous prime is 7261981476811. The next prime is 7261981476829. The reversal of 7261981476825 is 5286741891627.

It is not a de Polignac number, because 7261981476825 - 2⁵ = 7261981476793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7261981476829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3853281 + ... + 5419569.

Almost surely, 2^{7261981476825} is an apocalyptic number.

7261981476825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7261981476825 is a deficient number, since it is larger than the sum of its proper divisors (4744696450375).

7261981476825 is a wasteful number, since it uses less digits than its factorization.

7261981476825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628121 (or 1628116 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 66.

The spelling of 7261981476825 in words is "seven trillion, two hundred sixty-one billion, nine hundred eighty-one million, four hundred seventy-six thousand, eight hundred twenty-five".