40534209702 has 160 divisors (see below), whose sum is σ = 110808276480. Its totient is φ = 10816727040.

The previous prime is 40534209673. The next prime is 40534209707. The reversal of 40534209702 is 20790243504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40534209707) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1516518 + ... + 1543014.

It is an arithmetic number, because the mean of its divisors is an integer number (692551728).

Almost surely, 2^40534209702 is an apocalyptic number.

40534209702 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40534209702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55404138240).

40534209702 is an abundant number, since it is smaller than the sum of its proper divisors (70274066778).

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

40534209702 is a wasteful number, since it uses less digits than its factorization.

40534209702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26608 (or 26599 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 40534209702 in words is "forty billion, five hundred thirty-four million, two hundred nine thousand, seven hundred two".