73135621533250 has 64 divisors (see below), whose sum is σ = 140201874768384. Its totient is φ = 28551881030400.

The previous prime is 73135621533241. The next prime is 73135621533251. The reversal of 73135621533250 is 5233512653137.

It is a self number, because there is not a number n which added to its sum of digits gives 73135621533250.

It is not an unprimeable number, because it can be changed into a prime (73135621533251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11320039 + ... + 16565461.

It is an arithmetic number, because the mean of its divisors is an integer number (2190654293256).

Almost surely, 2^{73135621533250} is an apocalyptic number.

73135621533250 is a deficient number, since it is larger than the sum of its proper divisors (67066253235134).

73135621533250 is a wasteful number, since it uses less digits than its factorization.

73135621533250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246780 (or 5246770 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 46.

The spelling of 73135621533250 in words is "seventy-three trillion, one hundred thirty-five billion, six hundred twenty-one million, five hundred thirty-three thousand, two hundred fifty".