69690352138 has 16 divisors (see below), whose sum is σ = 114109515936. Its totient is φ = 31657777840.

The previous prime is 69690352117. The next prime is 69690352159. The reversal of 69690352138 is 83125309696.

It is an interprime number because it is at equal distance from previous prime (69690352117) and next prime (69690352159).

It is a super-2 number, since 2×69690352138² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946456 + ... + 1017427.

It is an arithmetic number, because the mean of its divisors is an integer number (7131844746).

Almost surely, 2^69690352138 is an apocalyptic number.

69690352138 is a deficient number, since it is larger than the sum of its proper divisors (44419163798).

69690352138 is a wasteful number, since it uses less digits than its factorization.

69690352138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965509.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 69690352138 in words is "sixty-nine billion, six hundred ninety million, three hundred fifty-two thousand, one hundred thirty-eight".