376561616421 has 8 divisors (see below), whose sum is σ = 502085292064. Its totient is φ = 251039509200.

The previous prime is 376561616419. The next prime is 376561616443. The reversal of 376561616421 is 124616165673.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 376561616421 - 2¹ = 376561616419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376561616471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392250 + ... + 952356.

It is an arithmetic number, because the mean of its divisors is an integer number (62760661508).

Almost surely, 2^376561616421 is an apocalyptic number.

It is an amenable number.

376561616421 is a deficient number, since it is larger than the sum of its proper divisors (125523675643).

376561616421 is a wasteful number, since it uses less digits than its factorization.

376561616421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784211.

The product of its digits is 1088640, while the sum is 48.

The spelling of 376561616421 in words is "three hundred seventy-six billion, five hundred sixty-one million, six hundred sixteen thousand, four hundred twenty-one".