2151453350521 has 4 divisors (see below), whose sum is σ = 2172341247232. Its totient is φ = 2130565453812.

The previous prime is 2151453350509. The next prime is 2151453350539. The reversal of 2151453350521 is 1250533541512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2151453350521 - 2²⁷ = 2151319132793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151453350551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10443948201 + ... + 10443948406.

It is an arithmetic number, because the mean of its divisors is an integer number (543085311808).

Almost surely, 2^{2151453350521} is an apocalyptic number.

It is an amenable number.

2151453350521 is a deficient number, since it is larger than the sum of its proper divisors (20887896711).

2151453350521 is a wasteful number, since it uses less digits than its factorization.

2151453350521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20887896710.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 2151453350521 in words is "two trillion, one hundred fifty-one billion, four hundred fifty-three million, three hundred fifty thousand, five hundred twenty-one".