738387793640 has 64 divisors (see below), whose sum is σ = 1898840136960. Its totient is φ = 253144373760.

The previous prime is 738387793541. The next prime is 738387793643. The reversal of 738387793640 is 46397783837.

It is not an unprimeable number, because it can be changed into a prime (738387793643) 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, 4463444 + ... + 4625916.

It is an arithmetic number, because the mean of its divisors is an integer number (29669377140).

Almost surely, 2^738387793640 is an apocalyptic number.

738387793640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

738387793640 is an abundant number, since it is smaller than the sum of its proper divisors (1160452343320).

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

738387793640 is a wasteful number, since it uses less digits than its factorization.

738387793640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178722 (or 178718 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 65.

The spelling of 738387793640 in words is "seven hundred thirty-eight billion, three hundred eighty-seven million, seven hundred ninety-three thousand, six hundred forty".