83806537950 has 192 divisors, whose sum is σ = 248171973120. Its totient is φ = 20719480320.

The previous prime is 83806537943. The next prime is 83806537957. The reversal of 83806537950 is 5973560838.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83806537943) and next prime (83806537957).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83806537957) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1510399 + ... + 1564901.

It is an arithmetic number, because the mean of its divisors is an integer number (1292562360).

Almost surely, 2^83806537950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83806537950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124085986560).

83806537950 is an abundant number, since it is smaller than the sum of its proper divisors (164365435170).

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

83806537950 is a wasteful number, since it uses less digits than its factorization.

83806537950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54608 (or 54597 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 83806537950 in words is "eighty-three billion, eight hundred six million, five hundred thirty-seven thousand, nine hundred fifty".