1401636777052 has 12 divisors (see below), whose sum is σ = 2477150146296. Its totient is φ = 693879592400.

The previous prime is 1401636777049. The next prime is 1401636777071. The reversal of 1401636777052 is 2507776361041.

It is a junction number, because it is equal to n+sod(n) for n = 1401636776987 and 1401636777005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734698578 + ... + 1734699385.

It is an arithmetic number, because the mean of its divisors is an integer number (206429178858).

Almost surely, 2^{1401636777052} is an apocalyptic number.

It is an amenable number.

1401636777052 is a deficient number, since it is larger than the sum of its proper divisors (1075513369244).

1401636777052 is a wasteful number, since it uses less digits than its factorization.

1401636777052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469398068 (or 3469398066 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 1401636777052 in words is "one trillion, four hundred one billion, six hundred thirty-six million, seven hundred seventy-seven thousand, fifty-two".