2154626463 has 16 divisors (see below), whose sum is σ = 3176937216. Its totient is φ = 1287944640.

The previous prime is 2154626447. The next prime is 2154626473. The reversal of 2154626463 is 3646264512.

It is not a de Polignac number, because 2154626463 - 2⁴ = 2154626447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154626423) 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, 444795 + ... + 449612.

It is an arithmetic number, because the mean of its divisors is an integer number (198558576).

Almost surely, 2^2154626463 is an apocalyptic number.

2154626463 is a deficient number, since it is larger than the sum of its proper divisors (1022310753).

2154626463 is a wasteful number, since it uses less digits than its factorization.

2154626463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894494.

The product of its digits is 207360, while the sum is 39.

The square root of 2154626463 is about 46417.9541018343. The cubic root of 2154626463 is about 1291.5879855026.

The spelling of 2154626463 in words is "two billion, one hundred fifty-four million, six hundred twenty-six thousand, four hundred sixty-three".