420530612782 has 32 divisors (see below), whose sum is σ = 726654956544. Its totient is φ = 178796764800.

The previous prime is 420530612771. The next prime is 420530612797. The reversal of 420530612782 is 287216035024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650407 + ... + 1124317.

It is an arithmetic number, because the mean of its divisors is an integer number (22707967392).

Almost surely, 2^420530612782 is an apocalyptic number.

420530612782 is a deficient number, since it is larger than the sum of its proper divisors (306124343762).

420530612782 is a wasteful number, since it uses less digits than its factorization.

420530612782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474424.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 420530612782 in words is "four hundred twenty billion, five hundred thirty million, six hundred twelve thousand, seven hundred eighty-two".