2157463256501 has 16 divisors (see below), whose sum is σ = 2507580641280. Its totient is φ = 1817825891760.

The previous prime is 2157463256497. The next prime is 2157463256587. The reversal of 2157463256501 is 1056523647512.

It is a cyclic number.

It is not a de Polignac number, because 2157463256501 - 2² = 2157463256497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157463256701) 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, 9665780 + ... + 9886466.

It is an arithmetic number, because the mean of its divisors is an integer number (156723790080).

Almost surely, 2^{2157463256501} is an apocalyptic number.

It is an amenable number.

2157463256501 is a deficient number, since it is larger than the sum of its proper divisors (350117384779).

2157463256501 is a wasteful number, since it uses less digits than its factorization.

2157463256501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244424.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 2157463256501 in words is "two trillion, one hundred fifty-seven billion, four hundred sixty-three million, two hundred fifty-six thousand, five hundred one".