1520074863 has 16 divisors (see below), whose sum is σ = 2324608000. Its totient is φ = 980692920.

The previous prime is 1520074823. The next prime is 1520074867. The reversal of 1520074863 is 3684700251.

1520074863 is a `hidden beast` number, since 1 + 520 + 0 + 74 + 8 + 63 = 666.

It is not a de Polignac number, because 1520074863 - 2¹² = 1520070767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520074867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907213 + ... + 908886.

It is an arithmetic number, because the mean of its divisors is an integer number (145288000).

Almost surely, 2^1520074863 is an apocalyptic number.

1520074863 is a deficient number, since it is larger than the sum of its proper divisors (804533137).

1520074863 is a wasteful number, since it uses less digits than its factorization.

1520074863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816139 (or 1816133 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1520074863 is about 38988.1374651316. The cubic root of 1520074863 is about 1149.7982917809.

The spelling of 1520074863 in words is "one billion, five hundred twenty million, seventy-four thousand, eight hundred sixty-three".