7287418061 has 32 divisors (see below), whose sum is σ = 9698641920. Its totient is φ = 5303793600.

The previous prime is 7287418057. The next prime is 7287418069. The reversal of 7287418061 is 1608147827.

It is not a de Polignac number, because 7287418061 - 2² = 7287418057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7287418069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68795 + ... + 138951.

It is an arithmetic number, because the mean of its divisors is an integer number (303082560).

Almost surely, 2^7287418061 is an apocalyptic number.

7287418061 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7287418061 is a deficient number, since it is larger than the sum of its proper divisors (2411223859).

7287418061 is a wasteful number, since it uses less digits than its factorization.

7287418061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70265.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 7287418061 is about 85366.3754706735. The cubic root of 7287418061 is about 1938.7622796380.

The spelling of 7287418061 in words is "seven billion, two hundred eighty-seven million, four hundred eighteen thousand, sixty-one".