72456270049 has 4 divisors (see below), whose sum is σ = 73997892864. Its totient is φ = 70914647236.

The previous prime is 72456270041. The next prime is 72456270067. The reversal of 72456270049 is 94007265427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72456270049 - 2³ = 72456270041 is a prime.

It is a super-2 number, since 2×72456270049² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72456269990 and 72456270008.

It is not an unprimeable number, because it can be changed into a prime (72456270041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770811337 + ... + 770811430.

It is an arithmetic number, because the mean of its divisors is an integer number (18499473216).

Almost surely, 2^72456270049 is an apocalyptic number.

It is an amenable number.

72456270049 is a deficient number, since it is larger than the sum of its proper divisors (1541622815).

72456270049 is a wasteful number, since it uses less digits than its factorization.

72456270049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541622814.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 72456270049 in words is "seventy-two billion, four hundred fifty-six million, two hundred seventy thousand, forty-nine".