675468681540 has 24 divisors (see below), whose sum is σ = 1891312308480. Its totient is φ = 180124981728.

The previous prime is 675468681523. The next prime is 675468681553. The reversal of 675468681540 is 45186864576.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 11257811359 = 675468681540 / (6 + 7 + 5 + 4 + 6 + 8 + 6 + 8 + 1 + 5 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5628905620 + ... + 5628905739.

It is an arithmetic number, because the mean of its divisors is an integer number (78804679520).

Almost surely, 2^675468681540 is an apocalyptic number.

675468681540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

675468681540 is an abundant number, since it is smaller than the sum of its proper divisors (1215843626940).

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

675468681540 is a wasteful number, since it uses less digits than its factorization.

675468681540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257811371 (or 11257811369 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 675468681540 in words is "six hundred seventy-five billion, four hundred sixty-eight million, six hundred eighty-one thousand, five hundred forty".