69388131950 has 24 divisors (see below), whose sum is σ = 129172249560. Its totient is φ = 27731527200.

The previous prime is 69388131949. The next prime is 69388131971. The reversal of 69388131950 is 5913188396.

It is a super-2 number, since 2×69388131950² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69388131892 and 69388131901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534005 + ... + 651104.

It is an arithmetic number, because the mean of its divisors is an integer number (5382177065).

Almost surely, 2^69388131950 is an apocalyptic number.

69388131950 is a deficient number, since it is larger than the sum of its proper divisors (59784117610).

69388131950 is a wasteful number, since it uses less digits than its factorization.

69388131950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186292 (or 1186287 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 69388131950 in words is "sixty-nine billion, three hundred eighty-eight million, one hundred thirty-one thousand, nine hundred fifty".