907381438621 has 16 divisors (see below), whose sum is σ = 1040766773760. Its totient is φ = 774940549680.

The previous prime is 907381438573. The next prime is 907381438643. The reversal of 907381438621 is 126834183709.

907381438621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-907381438621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (907381438661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2187930 + ... + 2569396.

It is an arithmetic number, because the mean of its divisors is an integer number (65047923360).

Almost surely, 2^907381438621 is an apocalyptic number.

It is an amenable number.

907381438621 is a deficient number, since it is larger than the sum of its proper divisors (133385335139).

907381438621 is a wasteful number, since it uses less digits than its factorization.

907381438621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382704.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 907381438621 in words is "nine hundred seven billion, three hundred eighty-one million, four hundred thirty-eight thousand, six hundred twenty-one".