490618951 has 2 divisors, whose sum is σ = 490618952. Its totient is φ = 490618950.

The previous prime is 490618943. The next prime is 490618967. The reversal of 490618951 is 159816094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490618951 - 2³ = 490618943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 490618898 and 490618907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490618901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245309475 + 245309476.

It is an arithmetic number, because the mean of its divisors is an integer number (245309476).

Almost surely, 2^490618951 is an apocalyptic number.

490618951 is a deficient number, since it is larger than the sum of its proper divisors (1).

490618951 is an equidigital number, since it uses as much as digits as its factorization.

490618951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 490618951 is about 22149.9198869883. The cubic root of 490618951 is about 788.7053253312.

The spelling of 490618951 in words is "four hundred ninety million, six hundred eighteen thousand, nine hundred fifty-one".