2921661292 has 24 divisors (see below), whose sum is σ = 5579727552. Its totient is φ = 1327549200.

The previous prime is 2921661283. The next prime is 2921661313.

2921661292 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2921661292² = 17072209410342218528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130567 + ... + 151297.

It is an arithmetic number, because the mean of its divisors is an integer number (232488648).

Almost surely, 2^2921661292 is an apocalyptic number.

2921661292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2921661292 is a deficient number, since it is larger than the sum of its proper divisors (2658066260).

2921661292 is a wasteful number, since it uses less digits than its factorization.

2921661292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23949 (or 23947 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 2921661292 is about 54052.3939525346. The cubic root of 2921661292 is about 1429.5849109018.

The spelling of 2921661292 in words is "two billion, nine hundred twenty-one million, six hundred sixty-one thousand, two hundred ninety-two".