73401728890867 has 64 divisors (see below), whose sum is σ = 88402414141440. Its totient is φ = 60329712643200.

The previous prime is 73401728890799. The next prime is 73401728890871. The reversal of 73401728890867 is 76809882710437.

It is not a de Polignac number, because 73401728890867 - 2³⁵ = 73367369152499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73401728890796 and 73401728890805.

It is not an unprimeable number, because it can be changed into a prime (73401728890067) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35416758 + ... + 37431940.

It is an arithmetic number, because the mean of its divisors is an integer number (1381287720960).

Almost surely, 2^{73401728890867} is an apocalyptic number.

73401728890867 is a deficient number, since it is larger than the sum of its proper divisors (15000685250573).

73401728890867 is a wasteful number, since it uses less digits than its factorization.

73401728890867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015384.

The product of its (nonzero) digits is 227598336, while the sum is 70.

The spelling of 73401728890867 in words is "seventy-three trillion, four hundred one billion, seven hundred twenty-eight million, eight hundred ninety thousand, eight hundred sixty-seven".