69929042481 has 27 divisors (see below), whose sum is σ = 101778749163. Its totient is φ = 46266597360.

The previous prime is 69929042371. The next prime is 69929042483. The reversal of 69929042481 is 18424092996.

The square root of 69929042481 is 264441.

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., 770562081 + 69158480400 = 27759^2 + 262980^2 .

It is not a de Polignac number, because 69929042481 - 2¹⁵ = 69929009713 is a prime.

It is a super-2 number, since 2×69929042481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69929042483) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 143591220 + ... + 143591706.

Almost surely, 2^69929042481 is an apocalyptic number.

69929042481 is the 264441-st square number.

69929042481 is the 132221-st centered octagonal number.

It is an amenable number.

69929042481 is a deficient number, since it is larger than the sum of its proper divisors (31849706682).

69929042481 is an frugal number, since it uses more digits than its factorization.

69929042481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 69929042481 in words is "sixty-nine billion, nine hundred twenty-nine million, forty-two thousand, four hundred eighty-one".