40985419687488 has 140 divisors (see below), whose sum is σ = 121545735523740. Its totient is φ = 13655946636288.

The previous prime is 40985419687477. The next prime is 40985419687489. The reversal of 40985419687488 is 88478691458904.

40985419687488 is a `hidden beast` number, since 4 + 0 + 9 + 8 + 5 + 41 + 96 + 8 + 7 + 488 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24412769501184 + 16572650186304 = 4940928^2 + 4070952^2 .

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (40985419687489) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10399858 + ... + 13788686.

Almost surely, 2^{40985419687488} is an apocalyptic number.

40985419687488 is a gapful number since it is divisible by the number (48) 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 40985419687488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60772867761870).

40985419687488 is an abundant number, since it is smaller than the sum of its proper divisors (80560315836252).

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

40985419687488 is a wasteful number, since it uses less digits than its factorization.

40985419687488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391186 (or 3391167 counting only the distinct ones).

The product of its (nonzero) digits is 4459069440, while the sum is 81.

The spelling of 40985419687488 in words is "forty trillion, nine hundred eighty-five billion, four hundred nineteen million, six hundred eighty-seven thousand, four hundred eighty-eight".