2188792461 has 16 divisors (see below), whose sum is σ = 2999006208. Its totient is φ = 1418932800.

The previous prime is 2188792453. The next prime is 2188792469. The reversal of 2188792461 is 1642978812.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2188792453) and next prime (2188792469).

It is not a de Polignac number, because 2188792461 - 2³ = 2188792453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2188792461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188792469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229651 + ... + 238991.

It is an arithmetic number, because the mean of its divisors is an integer number (187437888).

Almost surely, 2^2188792461 is an apocalyptic number.

It is an amenable number.

2188792461 is a deficient number, since it is larger than the sum of its proper divisors (810213747).

2188792461 is a wasteful number, since it uses less digits than its factorization.

2188792461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11492.

The product of its digits is 387072, while the sum is 48.

The square root of 2188792461 is about 46784.5322836512. The cubic root of 2188792461 is about 1298.3791359324.

The spelling of 2188792461 in words is "two billion, one hundred eighty-eight million, seven hundred ninety-two thousand, four hundred sixty-one".