3700721542756 has 72 divisors (see below), whose sum is σ = 7714216651680. Its totient is φ = 1548053152128.

The previous prime is 3700721542729. The next prime is 3700721542759. The reversal of 3700721542756 is 6572451270073.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (3700721542759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11924115 + ... + 12230533.

It is an arithmetic number, because the mean of its divisors is an integer number (107141897940).

Almost surely, 2^{3700721542756} 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 3700721542756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3857108325840).

3700721542756 is an abundant number, since it is smaller than the sum of its proper divisors (4013495108924).

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

3700721542756 is a wasteful number, since it uses less digits than its factorization.

3700721542756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307913 (or 307904 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 3700721542756 in words is "three trillion, seven hundred billion, seven hundred twenty-one million, five hundred forty-two thousand, seven hundred fifty-six".