73651498420 has 12 divisors (see below), whose sum is σ = 154668146724. Its totient is φ = 29460599360.

The previous prime is 73651498409. The next prime is 73651498429. The reversal of 73651498420 is 2489415637.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37470893476 + 36180604944 = 193574^2 + 190212^2 .

It is a super-2 number, since 2×73651498420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73651498429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841287441 + ... + 1841287480.

It is an arithmetic number, because the mean of its divisors is an integer number (12889012227).

It is a 1-persistent number, because it is pandigital, but 2⋅73651498420 = 147302996840 is not.

Almost surely, 2^73651498420 is an apocalyptic number.

It is an amenable number.

73651498420 is an abundant number, since it is smaller than the sum of its proper divisors (81016648304).

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

73651498420 is a wasteful number, since it uses less digits than its factorization.

73651498420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682574930 (or 3682574928 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 73651498420 in words is "seventy-three billion, six hundred fifty-one million, four hundred ninety-eight thousand, four hundred twenty".