139354433856 has 336 divisors, whose sum is σ = 455013811840. Its totient is φ = 41787187200.

The previous prime is 139354433843. The next prime is 139354433857. The reversal of 139354433856 is 658334453931.

139354433856 is a `hidden beast` number, since 1 + 3 + 93 + 544 + 3 + 3 + 8 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139354433857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20278101 + ... + 20284971.

Almost surely, 2^139354433856 is an apocalyptic number.

139354433856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139354433856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227506905920).

139354433856 is an abundant number, since it is smaller than the sum of its proper divisors (315659377984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139354433856 is a wasteful number, since it uses less digits than its factorization.

139354433856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7011 (or 6984 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The spelling of 139354433856 in words is "one hundred thirty-nine billion, three hundred fifty-four million, four hundred thirty-three thousand, eight hundred fifty-six".