245332278454 has 4 divisors (see below), whose sum is σ = 367998417684. Its totient is φ = 122666139226.

The previous prime is 245332278409. The next prime is 245332278461. The reversal of 245332278454 is 454872233542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454872233542 = 2 ⋅227436116771.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 245332278398 and 245332278407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61333069612 + ... + 61333069615.

It is an arithmetic number, because the mean of its divisors is an integer number (91999604421).

Almost surely, 2^245332278454 is an apocalyptic number.

245332278454 is a deficient number, since it is larger than the sum of its proper divisors (122666139230).

245332278454 is a wasteful number, since it uses less digits than its factorization.

245332278454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122666139229.

The product of its digits is 6451200, while the sum is 49.

The spelling of 245332278454 in words is "two hundred forty-five billion, three hundred thirty-two million, two hundred seventy-eight thousand, four hundred fifty-four".