6402638632053 has 8 divisors (see below), whose sum is σ = 8536928113728. Its totient is φ = 4268387452544.

The previous prime is 6402638632043. The next prime is 6402638632081. The reversal of 6402638632053 is 3502368362046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6402638632053 - 2⁴ = 6402638632037 is a prime.

It is a super-2 number, since 2×6402638632053² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6402638631993 and 6402638632011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402638632043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9183201 + ... + 9855782.

It is an arithmetic number, because the mean of its divisors is an integer number (1067116014216).

Almost surely, 2^{6402638632053} is an apocalyptic number.

It is an amenable number.

6402638632053 is a deficient number, since it is larger than the sum of its proper divisors (2134289481675).

6402638632053 is a wasteful number, since it uses less digits than its factorization.

6402638632053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19151083.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 6402638632053 in words is "six trillion, four hundred two billion, six hundred thirty-eight million, six hundred thirty-two thousand, fifty-three".