387799511040 has 624 divisors, whose sum is σ = 1390845167712. Its totient is φ = 99883155456.

The previous prime is 387799511009. The next prime is 387799511051. The reversal of 387799511040 is 40115997783.

It is a happy number.

387799511040 is a `hidden beast` number, since 3 + 87 + 7 + 9 + 9 + 511 + 0 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 895610664 + ... + 895611096.

It is an arithmetic number, because the mean of its divisors is an integer number (2228918538).

Almost surely, 2^387799511040 is an apocalyptic number.

387799511040 is a gapful number since it is divisible by the number (30) 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 387799511040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695422583856).

387799511040 is an abundant number, since it is smaller than the sum of its proper divisors (1003045656672).

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

387799511040 is a wasteful number, since it uses less digits than its factorization.

387799511040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 387799511040 in words is "three hundred eighty-seven billion, seven hundred ninety-nine million, five hundred eleven thousand, forty".