7276581081 has 64 divisors (see below), whose sum is σ = 13903718400. Its totient is φ = 3649665600.

The previous prime is 7276581079. The next prime is 7276581101. The reversal of 7276581081 is 1801856727.

It is a happy number.

It is not a de Polignac number, because 7276581081 - 2¹ = 7276581079 is a prime.

It is a super-2 number, since 2×7276581081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7276581071) 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 63 ways as a sum of consecutive naturals, for example, 55 + ... + 120636.

It is an arithmetic number, because the mean of its divisors is an integer number (217245600).

Almost surely, 2^7276581081 is an apocalyptic number.

It is an amenable number.

7276581081 is a deficient number, since it is larger than the sum of its proper divisors (6627137319).

7276581081 is a wasteful number, since it uses less digits than its factorization.

7276581081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120747 (or 120741 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The square root of 7276581081 is about 85302.8785036003. The cubic root of 7276581081 is about 1937.8007707666.

The spelling of 7276581081 in words is "seven billion, two hundred seventy-six million, five hundred eighty-one thousand, eighty-one".