672535539090 has 160 divisors (see below), whose sum is σ = 1826781574464. Its totient is φ = 177520014720.

The previous prime is 672535539077. The next prime is 672535539121. The reversal of 672535539090 is 90935535276.

672535539090 is a `hidden beast` number, since 6 + 72 + 5 + 35 + 539 + 0 + 9 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 140489677 + ... + 140494463.

Almost surely, 2^672535539090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672535539090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913390787232).

672535539090 is an abundant number, since it is smaller than the sum of its proper divisors (1154246035374).

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

672535539090 is a wasteful number, since it uses less digits than its factorization.

672535539090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534 (or 6525 counting only the distinct ones).

The product of its (nonzero) digits is 7654500, while the sum is 54.

The spelling of 672535539090 in words is "six hundred seventy-two billion, five hundred thirty-five million, five hundred thirty-nine thousand, ninety".