494782337251 has 4 divisors (see below), whose sum is σ = 499406471352. Its totient is φ = 490158203152.

The previous prime is 494782337249. The next prime is 494782337261. The reversal of 494782337251 is 152733287494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 494782337251 - 2¹ = 494782337249 is a prime.

It is a super-2 number, since 2×494782337251² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494782337192 and 494782337201.

It is not an unprimeable number, because it can be changed into a prime (494782337261) 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, 2312066890 + ... + 2312067103.

It is an arithmetic number, because the mean of its divisors is an integer number (124851617838).

Almost surely, 2^494782337251 is an apocalyptic number.

494782337251 is a deficient number, since it is larger than the sum of its proper divisors (4624134101).

494782337251 is a wasteful number, since it uses less digits than its factorization.

494782337251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624134100.

The product of its digits is 10160640, while the sum is 55.

The spelling of 494782337251 in words is "four hundred ninety-four billion, seven hundred eighty-two million, three hundred thirty-seven thousand, two hundred fifty-one".