37898491680 has 384 divisors, whose sum is σ = 160513436160. Its totient is φ = 8152842240.

The previous prime is 37898491669. The next prime is 37898491681. The reversal of 37898491680 is 8619489873.

37898491680 is a `hidden beast` number, since 3 + 7 + 89 + 8 + 491 + 68 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (37898491681) 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, 477220 + ... + 550940.

It is an arithmetic number, because the mean of its divisors is an integer number (418003740).

Almost surely, 2^37898491680 is an apocalyptic number.

37898491680 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 37898491680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80256718080).

37898491680 is an abundant number, since it is smaller than the sum of its proper divisors (122614944480).

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

37898491680 is a wasteful number, since it uses less digits than its factorization.

37898491680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73769 (or 73755 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 37898491680 in words is "thirty-seven billion, eight hundred ninety-eight million, four hundred ninety-one thousand, six hundred eighty".