1077946881 has 16 divisors (see below), whose sum is σ = 1576056000. Its totient is φ = 649912320.

The previous prime is 1077946861. The next prime is 1077946951. The reversal of 1077946881 is 1886497701.

It is a de Polignac number, because none of the positive numbers 2^k-1077946881 is a prime.

It is a super-2 number, since 2×1077946881² = 2323938956515256322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1077946861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78256 + ... + 90993.

It is an arithmetic number, because the mean of its divisors is an integer number (98503500).

Almost surely, 2^1077946881 is an apocalyptic number.

1077946881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1077946881 is a deficient number, since it is larger than the sum of its proper divisors (498109119).

1077946881 is a wasteful number, since it uses less digits than its factorization.

1077946881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169456.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 1077946881 is about 32832.1013795949. The cubic root of 1077946881 is about 1025.3350103824.

The spelling of 1077946881 in words is "one billion, seventy-seven million, nine hundred forty-six thousand, eight hundred eighty-one".