8742490263 has 24 divisors (see below), whose sum is σ = 13630208592. Its totient is φ = 5367817728.

The previous prime is 8742490241. The next prime is 8742490283. The reversal of 8742490263 is 3620942478.

8742490263 is a `hidden beast` number, since 87 + 424 + 90 + 2 + 63 = 666.

It is not a de Polignac number, because 8742490263 - 2⁶ = 8742490199 is a prime.

It is a super-2 number, since 2×8742490263² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742490283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32506 + ... + 136167.

It is an arithmetic number, because the mean of its divisors is an integer number (567925358).

Almost surely, 2^8742490263 is an apocalyptic number.

8742490263 is a deficient number, since it is larger than the sum of its proper divisors (4887718329).

8742490263 is a wasteful number, since it uses less digits than its factorization.

8742490263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169135 (or 169132 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8742490263 is about 93501.2848200494. The cubic root of 8742490263 is about 2060.0529617672.

The spelling of 8742490263 in words is "eight billion, seven hundred forty-two million, four hundred ninety thousand, two hundred sixty-three".