37391274781812 has 192 divisors, whose sum is σ = 114369392148480. Its totient is φ = 10338005376000.

The previous prime is 37391274781789. The next prime is 37391274781813. The reversal of 37391274781812 is 21818747219373.

37391274781812 is a `hidden beast` number, since 3 + 7 + 39 + 127 + 478 + 1 + 8 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 37391274781812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37391274781813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 543704253 + ... + 543773019.

It is an arithmetic number, because the mean of its divisors is an integer number (595673917440).

Almost surely, 2^{37391274781812} 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 37391274781812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57184696074240).

37391274781812 is an abundant number, since it is smaller than the sum of its proper divisors (76978117366668).

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

37391274781812 is a wasteful number, since it uses less digits than its factorization.

37391274781812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92019 (or 92011 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The spelling of 37391274781812 in words is "thirty-seven trillion, three hundred ninety-one billion, two hundred seventy-four million, seven hundred eighty-one thousand, eight hundred twelve".