69947839954 has 24 divisors (see below), whose sum is σ = 109633932540. Its totient is φ = 33465358080.

The previous prime is 69947839939. The next prime is 69947839963. The reversal of 69947839954 is 45993874996.

It can be written as a sum of positive squares in 2 ways, for example, as 69841275625 + 106564329 = 264275^2 + 10323^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33399 + ... + 375514.

Almost surely, 2^69947839954 is an apocalyptic number.

69947839954 is a deficient number, since it is larger than the sum of its proper divisors (39686092586).

69947839954 is a wasteful number, since it uses less digits than its factorization.

69947839954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409066 (or 409035 counting only the distinct ones).

The product of its digits is 529079040, while the sum is 73.

The spelling of 69947839954 in words is "sixty-nine billion, nine hundred forty-seven million, eight hundred thirty-nine thousand, nine hundred fifty-four".