139604988377 has 2 divisors, whose sum is σ = 139604988378. Its totient is φ = 139604988376.

The previous prime is 139604988359. The next prime is 139604988401. The reversal of 139604988377 is 773889406931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82263417856 + 57341570521 = 286816^2 + 239461^2 .

It is a cyclic number.

It is not a de Polignac number, because 139604988377 - 2¹⁶ = 139604922841 is a prime.

It is not a weakly prime, because it can be changed into another prime (139604988577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69802494188 + 69802494189.

It is an arithmetic number, because the mean of its divisors is an integer number (69802494189).

Almost surely, 2^139604988377 is an apocalyptic number.

It is an amenable number.

139604988377 is a deficient number, since it is larger than the sum of its proper divisors (1).

139604988377 is an equidigital number, since it uses as much as digits as its factorization.

139604988377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 139604988377 in words is "one hundred thirty-nine billion, six hundred four million, nine hundred eighty-eight thousand, three hundred seventy-seven".