1464420501257 has 16 divisors (see below), whose sum is σ = 1684550649600. Its totient is φ = 1247046162432.

The previous prime is 1464420501253. The next prime is 1464420501277. The reversal of 1464420501257 is 7521050244641.

It is a happy number.

It is not a de Polignac number, because 1464420501257 - 2² = 1464420501253 is a prime.

It is a super-4 number, since 4×1464420501257⁴ (a number of 50 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1464420501253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 267533 + ... + 1732170.

It is an arithmetic number, because the mean of its divisors is an integer number (105284415600).

Almost surely, 2^{1464420501257} is an apocalyptic number.

It is an amenable number.

1464420501257 is a deficient number, since it is larger than the sum of its proper divisors (220130148343).

1464420501257 is a wasteful number, since it uses less digits than its factorization.

1464420501257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000392.

The product of its (nonzero) digits is 268800, while the sum is 41.

Adding to 1464420501257 its reverse (7521050244641), we get a palindrome (8985470745898).

The spelling of 1464420501257 in words is "one trillion, four hundred sixty-four billion, four hundred twenty million, five hundred one thousand, two hundred fifty-seven".