10721071950 has 24 divisors (see below), whose sum is σ = 26588258808. Its totient is φ = 2858952480.

The previous prime is 10721071939. The next prime is 10721071979. The reversal of 10721071950 is 5917012701.

It is a super-2 number, since 2×10721071950² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35736757 + ... + 35737056.

It is an arithmetic number, because the mean of its divisors is an integer number (1107844117).

Almost surely, 2^10721071950 is an apocalyptic number.

10721071950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10721071950 is an abundant number, since it is smaller than the sum of its proper divisors (15867186858).

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

10721071950 is a wasteful number, since it uses less digits than its factorization.

10721071950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71473828 (or 71473823 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 33.

The spelling of 10721071950 in words is "ten billion, seven hundred twenty-one million, seventy-one thousand, nine hundred fifty".