138383390740610 has 32 divisors (see below), whose sum is σ = 270175205350512. Its totient is φ = 50826611230720.

The previous prime is 138383390740547. The next prime is 138383390740619. The reversal of 138383390740610 is 16047093383831.

It is a Cunningham number, because it is equal to 11763647²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 6668082201169 + 131715308539441 = 2582263^2 + 11476729^2 .

It is not an unprimeable number, because it can be changed into a prime (138383390740619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9927065537 + ... + 9927079476.

Almost surely, 2^{138383390740610} is an apocalyptic number.

138383390740610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138383390740610 is a deficient number, since it is larger than the sum of its proper divisors (131791814609902).

138383390740610 is a wasteful number, since it uses less digits than its factorization.

138383390740610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19854145078.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 138383390740610 in words is "one hundred thirty-eight trillion, three hundred eighty-three billion, three hundred ninety million, seven hundred forty thousand, six hundred ten".