490928157851 has 2 divisors, whose sum is σ = 490928157852. Its totient is φ = 490928157850.

The previous prime is 490928157773. The next prime is 490928157943. The reversal of 490928157851 is 158751829094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490928157851 - 2¹⁸ = 490927895707 is a prime.

It is not a weakly prime, because it can be changed into another prime (490928157151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245464078925 + 245464078926.

It is an arithmetic number, because the mean of its divisors is an integer number (245464078926).

Almost surely, 2^490928157851 is an apocalyptic number.

490928157851 is a deficient number, since it is larger than the sum of its proper divisors (1).

490928157851 is an equidigital number, since it uses as much as digits as its factorization.

490928157851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 59.

The spelling of 490928157851 in words is "four hundred ninety billion, nine hundred twenty-eight million, one hundred fifty-seven thousand, eight hundred fifty-one".