73208497920 has 144 divisors (see below), whose sum is σ = 239512829472. Its totient is φ = 19046072320.

The previous prime is 73208497909. The next prime is 73208497991. The reversal of 73208497920 is 2979480237.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75057 + ... + 389936.

It is an arithmetic number, because the mean of its divisors is an integer number (1663283538).

Almost surely, 2^73208497920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73208497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119756414736).

73208497920 is an abundant number, since it is smaller than the sum of its proper divisors (166304331552).

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

73208497920 is a wasteful number, since it uses less digits than its factorization.

73208497920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465058 (or 465044 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 73208497920 in words is "seventy-three billion, two hundred eight million, four hundred ninety-seven thousand, nine hundred twenty".