1472756330021 has 4 divisors (see below), whose sum is σ = 1472771852352. Its totient is φ = 1472740807692.

The previous prime is 1472756329997. The next prime is 1472756330033. The reversal of 1472756330021 is 1200336572741.

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 1472756330021 - 2¹⁸ = 1472756067877 is a prime.

It is a super-2 number, since 2×1472756330021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1472756336021) 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, 7617965 + ... + 7808898.

It is an arithmetic number, because the mean of its divisors is an integer number (368192963088).

Almost surely, 2^{1472756330021} is an apocalyptic number.

It is an amenable number.

1472756330021 is a deficient number, since it is larger than the sum of its proper divisors (15522331).

1472756330021 is an equidigital number, since it uses as much as digits as its factorization.

1472756330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15522330.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 1472756330021 in words is "one trillion, four hundred seventy-two billion, seven hundred fifty-six million, three hundred thirty thousand, twenty-one".