673654754523540 has 48 divisors (see below), whose sum is σ = 1886235788743488. Its totient is φ = 179641032056064.

The previous prime is 673654754523523. The next prime is 673654754523557. The reversal of 673654754523540 is 45325457456376.

It is an interprime number because it is at equal distance from previous prime (673654754523523) and next prime (673654754523557).

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, 41384224 + ... + 55316936.

It is an arithmetic number, because the mean of its divisors is an integer number (39296578932156).

Almost surely, 2^{673654754523540} is an apocalyptic number.

673654754523540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

673654754523540 is an abundant number, since it is smaller than the sum of its proper divisors (1212581034219948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673654754523540 is a wasteful number, since it uses less digits than its factorization.

673654754523540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738568 (or 14738566 counting only the distinct ones).

The product of its (nonzero) digits is 1270080000, while the sum is 66.

The spelling of 673654754523540 in words is "six hundred seventy-three trillion, six hundred fifty-four billion, seven hundred fifty-four million, five hundred twenty-three thousand, five hundred forty".