139721408010 has 96 divisors (see below), whose sum is σ = 373049696448. Its totient is φ = 36262759680.

The previous prime is 139721407997. The next prime is 139721408011. The reversal of 139721408010 is 10804127931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (139721408011) 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, 1023229 + ... + 1151711.

It is an arithmetic number, because the mean of its divisors is an integer number (3885934338).

Almost surely, 2^139721408010 is an apocalyptic number.

139721408010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139721408010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186524848224).

139721408010 is an abundant number, since it is smaller than the sum of its proper divisors (233328288438).

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

139721408010 is a wasteful number, since it uses less digits than its factorization.

139721408010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128820 (or 128817 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 139721408010 in words is "one hundred thirty-nine billion, seven hundred twenty-one million, four hundred eight thousand, ten".