6904505881 has 32 divisors (see below), whose sum is σ = 8726885888. Its totient is φ = 5317539840.

The previous prime is 6904505869. The next prime is 6904505887. The reversal of 6904505881 is 1885054096.

It is a cyclic number.

It is not a de Polignac number, because 6904505881 - 2⁵ = 6904505849 is a prime.

It is a super-2 number, since 2×6904505881² = 95344402921527172322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6904505887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532036 + ... + 544858.

It is an arithmetic number, because the mean of its divisors is an integer number (272715184).

Almost surely, 2^6904505881 is an apocalyptic number.

6904505881 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6904505881 is a deficient number, since it is larger than the sum of its proper divisors (1822380007).

6904505881 is a wasteful number, since it uses less digits than its factorization.

6904505881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 6904505881 is about 83093.3564191506. The cubic root of 6904505881 is about 1904.1925775050.

The spelling of 6904505881 in words is "six billion, nine hundred four million, five hundred five thousand, eight hundred eighty-one".