1078877554 has 4 divisors (see below), whose sum is σ = 1618316334. Its totient is φ = 539438776.

The previous prime is 1078877539. The next prime is 1078877563. The reversal of 1078877554 is 4557788701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4557788701 = 89 ⋅51211109.

It can be written as a sum of positive squares in only one way, i.e., 1077611929 + 1265625 = 32827^2 + 1125^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269719387 + ... + 269719390.

Almost surely, 2^1078877554 is an apocalyptic number.

1078877554 is a deficient number, since it is larger than the sum of its proper divisors (539438780).

1078877554 is an equidigital number, since it uses as much as digits as its factorization.

1078877554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539438779.

The product of its (nonzero) digits is 2195200, while the sum is 52.

The square root of 1078877554 is about 32846.2715387911. The cubic root of 1078877554 is about 1025.6300085661.

The spelling of 1078877554 in words is "one billion, seventy-eight million, eight hundred seventy-seven thousand, five hundred fifty-four".