40649831151552 has 336 divisors, whose sum is σ = 136915343136000. Its totient is φ = 11525571832320.

The previous prime is 40649831151551. The next prime is 40649831151583. The reversal of 40649831151552 is 25515113894604.

40649831151552 is a `hidden beast` number, since 4 + 0 + 6 + 4 + 9 + 8 + 31 + 1 + 51 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40649831151551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25096099 + ... + 26666717.

Almost surely, 2^{40649831151552} is an apocalyptic number.

40649831151552 is a gapful number since it is divisible by the number (42) 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 40649831151552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68457671568000).

40649831151552 is an abundant number, since it is smaller than the sum of its proper divisors (96265511984448).

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

40649831151552 is a wasteful number, since it uses less digits than its factorization.

40649831151552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570789 (or 1570762 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 40649831151552 in words is "forty trillion, six hundred forty-nine billion, eight hundred thirty-one million, one hundred fifty-one thousand, five hundred fifty-two".