83406780351 has 8 divisors (see below), whose sum is σ = 123565600560. Its totient is φ = 55604520216.

The previous prime is 83406780329. The next prime is 83406780377. The reversal of 83406780351 is 15308760438.

It is not a de Polignac number, because 83406780351 - 2¹⁵ = 83406747583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83406780297 and 83406780306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83406780851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544569980 + ... + 1544570033.

It is an arithmetic number, because the mean of its divisors is an integer number (15445700070).

Almost surely, 2^83406780351 is an apocalyptic number.

83406780351 is a deficient number, since it is larger than the sum of its proper divisors (40158820209).

83406780351 is a wasteful number, since it uses less digits than its factorization.

83406780351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089140022 (or 3089140016 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 83406780351 in words is "eighty-three billion, four hundred six million, seven hundred eighty thousand, three hundred fifty-one".