37782558642 has 16 divisors (see below), whose sum is σ = 79542228960. Its totient is φ = 11931334272.

The previous prime is 37782558641. The next prime is 37782558673. The reversal of 37782558642 is 24685528773.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (37782558641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165712863 + ... + 165713090.

It is an arithmetic number, because the mean of its divisors is an integer number (4971389310).

Almost surely, 2^37782558642 is an apocalyptic number.

37782558642 is an abundant number, since it is smaller than the sum of its proper divisors (41759670318).

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

37782558642 is a wasteful number, since it uses less digits than its factorization.

37782558642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331425977.

The product of its digits is 22579200, while the sum is 57.

The spelling of 37782558642 in words is "thirty-seven billion, seven hundred eighty-two million, five hundred fifty-eight thousand, six hundred forty-two".