73703253433530 has 128 divisors (see below), whose sum is σ = 214881991091712. Its totient is φ = 15793795104768.

The previous prime is 73703253433501. The next prime is 73703253433549. The reversal of 73703253433530 is 3533435230737.

It is a self number, because there is not a number n which added to its sum of digits gives 73703253433530.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39248209 + ... + 41083188.

It is an arithmetic number, because the mean of its divisors is an integer number (1678765555404).

Almost surely, 2^{73703253433530} is an apocalyptic number.

73703253433530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73703253433530 is an abundant number, since it is smaller than the sum of its proper divisors (141178737658182).

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

73703253433530 is a wasteful number, since it uses less digits than its factorization.

73703253433530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80331688.

The product of its (nonzero) digits is 7144200, while the sum is 48.

The spelling of 73703253433530 in words is "seventy-three trillion, seven hundred three billion, two hundred fifty-three million, four hundred thirty-three thousand, five hundred thirty".