7418961145729 has 9 divisors (see below), whose sum is σ = 8630242287681. Its totient is φ = 6359093210820.

The previous prime is 7418961145699. The next prime is 7418961145777. The reversal of 7418961145729 is 9275411698147.

The square root of 7418961145729 is 2723777.

It is a perfect power (a square), and thus also a powerful number.

7418961145729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7418961145729 - 2¹⁷ = 7418961014657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7418961145789) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18871884 + ... + 19260994.

Almost surely, 2^{7418961145729} is an apocalyptic number.

7418961145729 is the 2723777-th square number.

7418961145729 is the 1361889-th centered octagonal number.

It is an amenable number.

7418961145729 is a deficient number, since it is larger than the sum of its proper divisors (1211281141952).

7418961145729 is an frugal number, since it uses more digits than its factorization.

7418961145729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778236 (or 389118 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 64.

Multiplying 7418961145729 by its sum of digits (64), we get a square (474813513326656 = 21790216²).

The spelling of 7418961145729 in words is "seven trillion, four hundred eighteen billion, nine hundred sixty-one million, one hundred forty-five thousand, seven hundred twenty-nine".