2661426154 has 8 divisors (see below), whose sum is σ = 4031665668. Its totient is φ = 1317537600.

The previous prime is 2661426149. The next prime is 2661426179. The reversal of 2661426154 is 4516241662.

2661426154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2657918025 + 3508129 = 51555^2 + 1873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6587487 + ... + 6587890.

Almost surely, 2^2661426154 is an apocalyptic number.

2661426154 is a deficient number, since it is larger than the sum of its proper divisors (1370239514).

2661426154 is a wasteful number, since it uses less digits than its factorization.

2661426154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13175480.

The product of its digits is 69120, while the sum is 37.

The square root of 2661426154 is about 51589.0119502206. The cubic root of 2661426154 is about 1385.8135608605.

The spelling of 2661426154 in words is "two billion, six hundred sixty-one million, four hundred twenty-six thousand, one hundred fifty-four".