83121373857710 has 16 divisors (see below), whose sum is σ = 150187364480736. Its totient is φ = 33122129201568.

The previous prime is 83121373857707. The next prime is 83121373857721. The reversal of 83121373857710 is 1775837312138.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15802539929 + ... + 15802545188.

It is an arithmetic number, because the mean of its divisors is an integer number (9386710280046).

Almost surely, 2^{83121373857710} is an apocalyptic number.

83121373857710 is a deficient number, since it is larger than the sum of its proper divisors (67065990623026).

83121373857710 is a wasteful number, since it uses less digits than its factorization.

83121373857710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31605085387.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 83121373857710 in words is "eighty-three trillion, one hundred twenty-one billion, three hundred seventy-three million, eight hundred fifty-seven thousand, seven hundred ten".