7611681854 has 12 divisors (see below), whose sum is σ = 13281608304. Its totient is φ = 3262149324.

The previous prime is 7611681757. The next prime is 7611681899. The reversal of 7611681854 is 4581861167.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7611681799 and 7611681808.

It is a congruent number.

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, 38835014 + ... + 38835209.

It is an arithmetic number, because the mean of its divisors is an integer number (1106800692).

Almost surely, 2^7611681854 is an apocalyptic number.

7611681854 is a deficient number, since it is larger than the sum of its proper divisors (5669926450).

7611681854 is a wasteful number, since it uses less digits than its factorization.

7611681854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77670239 (or 77670232 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 7611681854 is about 87244.9531720890. The cubic root of 7611681854 is about 1967.1019817694.

The spelling of 7611681854 in words is "seven billion, six hundred eleven million, six hundred eighty-one thousand, eight hundred fifty-four".