2661250860454 has 24 divisors (see below), whose sum is σ = 4241809433880. Its totient is φ = 1251968184576.

The previous prime is 2661250860413. The next prime is 2661250860547. The reversal of 2661250860454 is 4540680521662.

It is a happy number.

It is a super-2 number, since 2×2661250860454² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2661250860398 and 2661250860407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177314 + ... + 2590090.

It is an arithmetic number, because the mean of its divisors is an integer number (176742059745).

Almost surely, 2^{2661250860454} is an apocalyptic number.

2661250860454 is a deficient number, since it is larger than the sum of its proper divisors (1580558573426).

2661250860454 is a wasteful number, since it uses less digits than its factorization.

2661250860454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416072 (or 1416055 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 2661250860454 in words is "two trillion, six hundred sixty-one billion, two hundred fifty million, eight hundred sixty thousand, four hundred fifty-four".