736640979420 has 48 divisors (see below), whose sum is σ = 2118340552608. Its totient is φ = 191128469760.

The previous prime is 736640979419. The next prime is 736640979421. The reversal of 736640979420 is 24979046637.

736640979420 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (736640979419) and next prime (736640979421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (736640979421) 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, 165907911 + ... + 165912350.

It is an arithmetic number, because the mean of its divisors is an integer number (44132094846).

Almost surely, 2^736640979420 is an apocalyptic number.

It is an amenable number.

736640979420 is an abundant number, since it is smaller than the sum of its proper divisors (1381699573188).

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

736640979420 is a wasteful number, since it uses less digits than its factorization.

736640979420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331820310 (or 331820308 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 57.

The spelling of 736640979420 in words is "seven hundred thirty-six billion, six hundred forty million, nine hundred seventy-nine thousand, four hundred twenty".