1400564747461 has 4 divisors (see below), whose sum is σ = 1527888815424. Its totient is φ = 1273240679500.

The previous prime is 1400564747453. The next prime is 1400564747467. The reversal of 1400564747461 is 1647474650041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1400564747461 - 2³ = 1400564747453 is a prime.

It is a super-2 number, since 2×1400564747461² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400564747467) 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, 63662033965 + ... + 63662033986.

It is an arithmetic number, because the mean of its divisors is an integer number (381972203856).

Almost surely, 2^{1400564747461} is an apocalyptic number.

1400564747461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1400564747461 is a deficient number, since it is larger than the sum of its proper divisors (127324067963).

1400564747461 is a wasteful number, since it uses less digits than its factorization.

1400564747461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127324067962.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 1400564747461 in words is "one trillion, four hundred billion, five hundred sixty-four million, seven hundred forty-seven thousand, four hundred sixty-one".