69554040361 has 9 divisors (see below), whose sum is σ = 75319626231. Its totient is φ = 64200564792.

The previous prime is 69554040359. The next prime is 69554040377. The reversal of 69554040361 is 16304045596.

The square root of 69554040361 is 263731.

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

It can be written as a sum of positive squares in only one way, i.e., 10289059225 + 59264981136 = 101435^2 + 243444^2 .

It is not a de Polignac number, because 69554040361 - 2¹ = 69554040359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69554040331) 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, 3418360 + ... + 3438646.

It is an arithmetic number, because the mean of its divisors is an integer number (8368847359).

Almost surely, 2^69554040361 is an apocalyptic number.

69554040361 is the 263731-st square number.

69554040361 is the 131866-th centered octagonal number.

It is an amenable number.

69554040361 is a deficient number, since it is larger than the sum of its proper divisors (5765585870).

69554040361 is an frugal number, since it uses more digits than its factorization.

69554040361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40600 (or 20300 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 69554040361 in words is "sixty-nine billion, five hundred fifty-four million, forty thousand, three hundred sixty-one".