377861007616 has 81 divisors (see below), whose sum is σ = 763687271529. Its totient is φ = 186594628608.

The previous prime is 377861007553. The next prime is 377861007619. The reversal of 377861007616 is 616700168773.

The square root of 377861007616 is 614704.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 205390240000 + 172470767616 = 453200^2 + 415296^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (377861007619) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1013032006 + ... + 1013032378.

Almost surely, 2^377861007616 is an apocalyptic number.

377861007616 is the 614704-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 377861007616

377861007616 is an abundant number, since it is smaller than the sum of its proper divisors (385826263913).

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

377861007616 is an frugal number, since it uses more digits than its factorization.

377861007616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 377861007616 in words is "three hundred seventy-seven billion, eight hundred sixty-one million, seven thousand, six hundred sixteen".