623775435212 has 6 divisors (see below), whose sum is σ = 1091607011628. Its totient is φ = 311887717604.

The previous prime is 623775435193. The next prime is 623775435307. The reversal of 623775435212 is 212534577326.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77971929398 + ... + 77971929405.

It is an arithmetic number, because the mean of its divisors is an integer number (181934501938).

Almost surely, 2^623775435212 is an apocalyptic number.

It is an amenable number.

623775435212 is a deficient number, since it is larger than the sum of its proper divisors (467831576416).

623775435212 is a wasteful number, since it uses less digits than its factorization.

623775435212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155943858807 (or 155943858805 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 47.

The spelling of 623775435212 in words is "six hundred twenty-three billion, seven hundred seventy-five million, four hundred thirty-five thousand, two hundred twelve".