1479012477778 has 12 divisors (see below), whose sum is σ = 2438537102190. Its totient is φ = 672278398880.

The previous prime is 1479012477763. The next prime is 1479012477853. The reversal of 1479012477778 is 8777742109741.

It can be written as a sum of positive squares in only one way, i.e., 1390953695769 + 88058782009 = 1179387^2 + 296747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3055810663 + ... + 3055811146.

Almost surely, 2^{1479012477778} is an apocalyptic number.

1479012477778 is a deficient number, since it is larger than the sum of its proper divisors (959524624412).

1479012477778 is a wasteful number, since it uses less digits than its factorization.

1479012477778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111621833 (or 6111621822 counting only the distinct ones).

The product of its (nonzero) digits is 38723328, while the sum is 64.

The spelling of 1479012477778 in words is "one trillion, four hundred seventy-nine billion, twelve million, four hundred seventy-seven thousand, seven hundred seventy-eight".