40083261780 has 48 divisors (see below), whose sum is σ = 112253266944. Its totient is φ = 10686952320.

The previous prime is 40083261773. The next prime is 40083261781. The reversal of 40083261780 is 8716238004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40083261781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294669 + ... + 408651.

It is an arithmetic number, because the mean of its divisors is an integer number (2338609728).

Almost surely, 2^40083261780 is an apocalyptic number.

It is an amenable number.

40083261780 is an abundant number, since it is smaller than the sum of its proper divisors (72170005164).

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

40083261780 is a wasteful number, since it uses less digits than its factorization.

40083261780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119856 (or 119854 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

Adding to 40083261780 its reverse (8716238004), we get a palindrome (48799499784).

The spelling of 40083261780 in words is "forty billion, eighty-three million, two hundred sixty-one thousand, seven hundred eighty".