40387869672 has 128 divisors (see below), whose sum is σ = 106360128000. Its totient is φ = 12766361600.

The previous prime is 40387869667. The next prime is 40387869701. The reversal of 40387869672 is 27696878304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6888022 + ... + 6893882.

It is an arithmetic number, because the mean of its divisors is an integer number (830938500).

Almost surely, 2^40387869672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40387869672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53180064000).

40387869672 is an abundant number, since it is smaller than the sum of its proper divisors (65972258328).

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

40387869672 is a wasteful number, since it uses less digits than its factorization.

40387869672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107 (or 6103 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 40387869672 in words is "forty billion, three hundred eighty-seven million, eight hundred sixty-nine thousand, six hundred seventy-two".