72421060062746 has 8 divisors (see below), whose sum is σ = 108671106868500. Its totient is φ = 36197357773248.

The previous prime is 72421060062709. The next prime is 72421060062773. The reversal of 72421060062746 is 64726006012427.

It can be written as a sum of positive squares in 2 ways, for example, as 72402485371225 + 18574691521 = 8508965^2 + 136289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72421060062746² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72421060062746.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6586122191 + ... + 6586133186.

Almost surely, 2^{72421060062746} is an apocalyptic number.

72421060062746 is a deficient number, since it is larger than the sum of its proper divisors (36250046805754).

72421060062746 is a wasteful number, since it uses less digits than its factorization.

72421060062746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13172258128.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 72421060062746 in words is "seventy-two trillion, four hundred twenty-one billion, sixty million, sixty-two thousand, seven hundred forty-six".