40379838920550 has 192 divisors, whose sum is σ = 114865648128000. Its totient is φ = 10419928646400.

The previous prime is 40379838920549. The next prime is 40379838920639. The reversal of 40379838920550 is 5502983897304.

40379838920550 is a `hidden beast` number, since 4 + 0 + 3 + 79 + 8 + 3 + 8 + 9 + 2 + 0 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1165379626 + ... + 1165414274.

It is an arithmetic number, because the mean of its divisors is an integer number (598258584000).

Almost surely, 2^{40379838920550} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40379838920550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57432824064000).

40379838920550 is an abundant number, since it is smaller than the sum of its proper divisors (74485809207450).

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

40379838920550 is a wasteful number, since it uses less digits than its factorization.

40379838920550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62548 (or 62537 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 40379838920550 in words is "forty trillion, three hundred seventy-nine billion, eight hundred thirty-eight million, nine hundred twenty thousand, five hundred fifty".