3561095492421 has 16 divisors (see below), whose sum is σ = 4829285560320. Its totient is φ = 2333495901680.

The previous prime is 3561095492401. The next prime is 3561095492441. The reversal of 3561095492421 is 1242945901653.

It is an interprime number because it is at equal distance from previous prime (3561095492401) and next prime (3561095492441).

It is a cyclic number.

It is not a de Polignac number, because 3561095492421 - 2⁵ = 3561095492389 is a prime.

It is a super-2 number, since 2×3561095492421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561095492401) 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, 159015 + ... + 2673476.

It is an arithmetic number, because the mean of its divisors is an integer number (301830347520).

Almost surely, 2^{3561095492421} is an apocalyptic number.

It is an amenable number.

3561095492421 is a deficient number, since it is larger than the sum of its proper divisors (1268190067899).

3561095492421 is a wasteful number, since it uses less digits than its factorization.

3561095492421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839656.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 3561095492421 in words is "three trillion, five hundred sixty-one billion, ninety-five million, four hundred ninety-two thousand, four hundred twenty-one".