1401287477200 has 60 divisors (see below), whose sum is σ = 3625561882348. Its totient is φ = 517398451200.

The previous prime is 1401287477173. The next prime is 1401287477207. The reversal of 1401287477200 is 27747821041.

It can be written as a sum of positive squares in 6 ways, for example, as 49016188816 + 1352271288384 = 221396^2 + 1162872^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401287477207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134733981 + ... + 134744380.

Almost surely, 2^{1401287477200} is an apocalyptic number.

1401287477200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401287477200 is an abundant number, since it is smaller than the sum of its proper divisors (2224274405148).

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

1401287477200 is a wasteful number, since it uses less digits than its factorization.

1401287477200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269478392 (or 269478381 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 43.

The spelling of 1401287477200 in words is "one trillion, four hundred one billion, two hundred eighty-seven million, four hundred seventy-seven thousand, two hundred".