740397886648 has 24 divisors (see below), whose sum is σ = 1614898452600. Its totient is φ = 317313379824.

The previous prime is 740397886609. The next prime is 740397886651. The reversal of 740397886648 is 846688793047.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 944384668 + ... + 944385451.

It is an arithmetic number, because the mean of its divisors is an integer number (67287435525).

Almost surely, 2^740397886648 is an apocalyptic number.

It is an amenable number.

740397886648 is an abundant number, since it is smaller than the sum of its proper divisors (874500565952).

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

740397886648 is a wasteful number, since it uses less digits than its factorization.

740397886648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888770139 (or 1888770128 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 70.

The spelling of 740397886648 in words is "seven hundred forty billion, three hundred ninety-seven million, eight hundred eighty-six thousand, six hundred forty-eight".