6154881364 has 6 divisors (see below), whose sum is σ = 10771042394. Its totient is φ = 3077440680.

The previous prime is 6154881349. The next prime is 6154881371. The reversal of 6154881364 is 4631884516.

It can be written as a sum of positive squares in only one way, i.e., 6154402500 + 478864 = 78450^2 + 692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769360167 + ... + 769360174.

Almost surely, 2^6154881364 is an apocalyptic number.

It is an amenable number.

6154881364 is a deficient number, since it is larger than the sum of its proper divisors (4616161030).

6154881364 is a wasteful number, since it uses less digits than its factorization.

6154881364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538720345 (or 1538720343 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 6154881364 is about 78453.0519737760. The cubic root of 6154881364 is about 1832.6234049363.

The spelling of 6154881364 in words is "six billion, one hundred fifty-four million, eight hundred eighty-one thousand, three hundred sixty-four".