40537555200 has 648 divisors, whose sum is σ = 155507421888. Its totient is φ = 10048389120.

The previous prime is 40537555129. The next prime is 40537555271. The reversal of 40537555200 is 255573504.

It is an interprime number because it is at equal distance from previous prime (40537555129) and next prime (40537555271).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 49017187 + ... + 49018013.

Almost surely, 2^40537555200 is an apocalyptic number.

40537555200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40537555200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77753710944).

40537555200 is an abundant number, since it is smaller than the sum of its proper divisors (114969866688).

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

40537555200 is a wasteful number, since it uses less digits than its factorization.

40537555200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The spelling of 40537555200 in words is "forty billion, five hundred thirty-seven million, five hundred fifty-five thousand, two hundred".