3728701209492 has 96 divisors (see below), whose sum is σ = 11054925136640. Its totient is φ = 1064675767680.

The previous prime is 3728701209481. The next prime is 3728701209529. The reversal of 3728701209492 is 2949021078273.

It is a happy number.

3728701209492 is a `hidden beast` number, since 3 + 7 + 28 + 7 + 0 + 120 + 9 + 492 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 336859 + ... + 2751522.

Almost surely, 2^{3728701209492} 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 3728701209492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5527462568320).

3728701209492 is an abundant number, since it is smaller than the sum of its proper divisors (7326223927148).

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

3728701209492 is a wasteful number, since it uses less digits than its factorization.

3728701209492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089998 (or 3089990 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 3728701209492 in words is "three trillion, seven hundred twenty-eight billion, seven hundred one million, two hundred nine thousand, four hundred ninety-two".