34900791561 has 6 divisors (see below), whose sum is σ = 50412254490. Its totient is φ = 23267194368.

The previous prime is 34900791557. The next prime is 34900791571. The reversal of 34900791561 is 16519700943.

34900791561 is a `hidden beast` number, since 3 + 490 + 0 + 7 + 9 + 156 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22659581961 + 12241209600 = 150531^2 + 110640^2 .

It is not a de Polignac number, because 34900791561 - 2² = 34900791557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34900791521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1938932856 + ... + 1938932873.

It is an arithmetic number, because the mean of its divisors is an integer number (8402042415).

Almost surely, 2^34900791561 is an apocalyptic number.

It is an amenable number.

34900791561 is a deficient number, since it is larger than the sum of its proper divisors (15511462929).

34900791561 is a wasteful number, since it uses less digits than its factorization.

34900791561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877865735 (or 3877865732 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 34900791561 in words is "thirty-four billion, nine hundred million, seven hundred ninety-one thousand, five hundred sixty-one".