2197813281254 has 8 divisors (see below), whose sum is σ = 3358922184720. Its totient is φ = 1078172553016.

The previous prime is 2197813281241. The next prime is 2197813281283. The reversal of 2197813281254 is 4521823187912.

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

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a junction number, because it is equal to n+sod(n) for n = 2197813281196 and 2197813281205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10367043674 + ... + 10367043885.

It is an arithmetic number, because the mean of its divisors is an integer number (419865273090).

Almost surely, 2^{2197813281254} is an apocalyptic number.

2197813281254 is a deficient number, since it is larger than the sum of its proper divisors (1161108903466).

2197813281254 is a wasteful number, since it uses less digits than its factorization.

2197813281254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20734087614.

The product of its digits is 1935360, while the sum is 53.

The spelling of 2197813281254 in words is "two trillion, one hundred ninety-seven billion, eight hundred thirteen million, two hundred eighty-one thousand, two hundred fifty-four".