1465634856387 has 16 divisors (see below), whose sum is σ = 2123808690080. Its totient is φ = 893654560512.

The previous prime is 1465634856373. The next prime is 1465634856419. The reversal of 1465634856387 is 7836584365641.

It is a happy number.

It is not a de Polignac number, because 1465634856387 - 2¹² = 1465634852291 is a prime.

It is a super-2 number, since 2×1465634856387² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1465634856317) 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, 172382818 + ... + 172391319.

It is an arithmetic number, because the mean of its divisors is an integer number (132738043130).

Almost surely, 2^{1465634856387} is an apocalyptic number.

1465634856387 is a deficient number, since it is larger than the sum of its proper divisors (658173833693).

1465634856387 is a wasteful number, since it uses less digits than its factorization.

1465634856387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344774262.

The product of its digits is 348364800, while the sum is 66.

The spelling of 1465634856387 in words is "one trillion, four hundred sixty-five billion, six hundred thirty-four million, eight hundred fifty-six thousand, three hundred eighty-seven".