623493948488 has 8 divisors (see below), whose sum is σ = 1169051153430. Its totient is φ = 311746974240.

The previous prime is 623493948437. The next prime is 623493948569. The reversal of 623493948488 is 884849394326.

It can be written as a sum of positive squares in only one way, i.e., 350130191524 + 273363756964 = 591718^2 + 522842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×623493948488² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38968371773 + ... + 38968371788.

Almost surely, 2^623493948488 is an apocalyptic number.

It is an amenable number.

623493948488 is a deficient number, since it is larger than the sum of its proper divisors (545557204942).

623493948488 is a wasteful number, since it uses less digits than its factorization.

623493948488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77936743567 (or 77936743563 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 68.

The spelling of 623493948488 in words is "six hundred twenty-three billion, four hundred ninety-three million, nine hundred forty-eight thousand, four hundred eighty-eight".