3465725427921 has 16 divisors (see below), whose sum is σ = 4624731003200. Its totient is φ = 2308602498048.

The previous prime is 3465725427887. The next prime is 3465725427929. The reversal of 3465725427921 is 1297245275643.

It is a happy number.

3465725427921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3465725427921 - 2⁷ = 3465725427793 is a prime.

It is a super-2 number, since 2×3465725427921² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3465725427929) 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, 18583425 + ... + 18768993.

It is an arithmetic number, because the mean of its divisors is an integer number (289045687700).

Almost surely, 2^{3465725427921} is an apocalyptic number.

It is an amenable number.

3465725427921 is a deficient number, since it is larger than the sum of its proper divisors (1159005575279).

3465725427921 is a wasteful number, since it uses less digits than its factorization.

3465725427921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190608.

The product of its digits is 25401600, while the sum is 57.

The spelling of 3465725427921 in words is "three trillion, four hundred sixty-five billion, seven hundred twenty-five million, four hundred twenty-seven thousand, nine hundred twenty-one".