407721342464 has 40 divisors (see below), whose sum is σ = 814860231768. Its totient is φ = 203807150080.

The previous prime is 407721342463. The next prime is 407721342481. The reversal of 407721342464 is 464243127704.

It is a super-3 number, since 3×407721342464³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407721342461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884479 + ... + 2089665.

Almost surely, 2^407721342464 is an apocalyptic number.

It is an amenable number.

407721342464 is a deficient number, since it is larger than the sum of its proper divisors (407138889304).

407721342464 is an equidigital number, since it uses as much as digits as its factorization.

407721342464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209086 (or 209070 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 44.

The spelling of 407721342464 in words is "four hundred seven billion, seven hundred twenty-one million, three hundred forty-two thousand, four hundred sixty-four".