38540007870 has 64 divisors (see below), whose sum is σ = 113841262080. Its totient is φ = 8131517568.

The previous prime is 38540007851. The next prime is 38540007871. The reversal of 38540007870 is 7870004583.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38540007871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7055880 + ... + 7061339.

It is an arithmetic number, because the mean of its divisors is an integer number (1778769720).

Almost surely, 2^38540007870 is an apocalyptic number.

38540007870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38540007870 is an abundant number, since it is smaller than the sum of its proper divisors (75301254210).

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

38540007870 is a wasteful number, since it uses less digits than its factorization.

38540007870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14117249.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 38540007870 in words is "thirty-eight billion, five hundred forty million, seven thousand, eight hundred seventy".