83401513844 has 24 divisors (see below), whose sum is σ = 159328705536. Its totient is φ = 37884152000.

The previous prime is 83401513841. The next prime is 83401513861. The reversal of 83401513844 is 44831510438.

It is a super-2 number, since 2×83401513844² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83401513841) 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, 574772 + ... + 705099.

It is an arithmetic number, because the mean of its divisors is an integer number (6638696064).

Almost surely, 2^83401513844 is an apocalyptic number.

It is an amenable number.

83401513844 is a deficient number, since it is larger than the sum of its proper divisors (75927191692).

83401513844 is a wasteful number, since it uses less digits than its factorization.

83401513844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281367 (or 1281365 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 83401513844 in words is "eighty-three billion, four hundred one million, five hundred thirteen thousand, eight hundred forty-four".