1400263887764 has 72 divisors (see below), whose sum is σ = 3000883979520. Its totient is φ = 568467849600.

The previous prime is 1400263887749. The next prime is 1400263887769. The reversal of 1400263887764 is 4677883620041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400263887769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56745149 + ... + 56769819.

It is an arithmetic number, because the mean of its divisors is an integer number (41678944160).

Almost surely, 2^{1400263887764} is an apocalyptic number.

1400263887764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1400263887764 is an abundant number, since it is smaller than the sum of its proper divisors (1600620091756).

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

1400263887764 is a wasteful number, since it uses less digits than its factorization.

1400263887764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39949 (or 39940 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 1400263887764 in words is "one trillion, four hundred billion, two hundred sixty-three million, eight hundred eighty-seven thousand, seven hundred sixty-four".