20254346461 has 4 divisors (see below), whose sum is σ = 20413829632. Its totient is φ = 20094863292.

The previous prime is 20254346429. The next prime is 20254346467. The reversal of 20254346461 is 16464345202.

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 20254346461 - 2⁵ = 20254346429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20254346461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20254346467) 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, 79741395 + ... + 79741648.

It is an arithmetic number, because the mean of its divisors is an integer number (5103457408).

Almost surely, 2^20254346461 is an apocalyptic number.

It is an amenable number.

20254346461 is a deficient number, since it is larger than the sum of its proper divisors (159483171).

20254346461 is a wasteful number, since it uses less digits than its factorization.

20254346461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159483170.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 20254346461 in words is "twenty billion, two hundred fifty-four million, three hundred forty-six thousand, four hundred sixty-one".