139293168399 has 256 divisors, whose sum is σ = 278289285120. Its totient is φ = 66718080000.

The previous prime is 139293168389. The next prime is 139293168431. The reversal of 139293168399 is 993861392931.

139293168399 is a `hidden beast` number, since 13 + 92 + 93 + 1 + 68 + 399 = 666.

It is a Cunningham number, because it is equal to 373220²-1.

It is not a de Polignac number, because 139293168399 - 2¹³ = 139293160207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139293168349) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 231768699 + ... + 231769299.

It is an arithmetic number, because the mean of its divisors is an integer number (1087067520).

Almost surely, 2^139293168399 is an apocalyptic number.

139293168399 is a deficient number, since it is larger than the sum of its proper divisors (138996116721).

139293168399 is a wasteful number, since it uses less digits than its factorization.

139293168399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 813 counting only the distinct ones).

The product of its digits is 17006112, while the sum is 63.

The spelling of 139293168399 in words is "one hundred thirty-nine billion, two hundred ninety-three million, one hundred sixty-eight thousand, three hundred ninety-nine".