2521163967 has 8 divisors (see below), whose sum is σ = 3841773696. Its totient is φ = 1440665112.

The previous prime is 2521163959. The next prime is 2521163993. The reversal of 2521163967 is 7693611252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2521163967 - 2³ = 2521163959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521163947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60027693 + ... + 60027734.

It is an arithmetic number, because the mean of its divisors is an integer number (480221712).

Almost surely, 2^2521163967 is an apocalyptic number.

2521163967 is a deficient number, since it is larger than the sum of its proper divisors (1320609729).

2521163967 is a wasteful number, since it uses less digits than its factorization.

2521163967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120055437.

The product of its digits is 136080, while the sum is 42.

The square root of 2521163967 is about 50211.1936424539. The cubic root of 2521163967 is about 1361.0279078374.

The spelling of 2521163967 in words is "two billion, five hundred twenty-one million, one hundred sixty-three thousand, nine hundred sixty-seven".