61402134213 has 16 divisors (see below), whose sum is σ = 103961285760. Its totient is φ = 35086933728.

The previous prime is 61402134203. The next prime is 61402134229. The reversal of 61402134213 is 31243120416.

It is a happy number.

61402134213 is a `hidden beast` number, since 614 + 0 + 2 + 1 + 3 + 42 + 1 + 3 = 666.

It is not a de Polignac number, because 61402134213 - 2⁴ = 61402134197 is a prime.

It is a super-2 number, since 2×61402134213² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61402134203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162439320 + ... + 162439697.

It is an arithmetic number, because the mean of its divisors is an integer number (6497580360).

Almost surely, 2^61402134213 is an apocalyptic number.

61402134213 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

61402134213 is a deficient number, since it is larger than the sum of its proper divisors (42559151547).

61402134213 is a wasteful number, since it uses less digits than its factorization.

61402134213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324879033 (or 324879027 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 61402134213 its reverse (31243120416), we get a palindrome (92645254629).

The spelling of 61402134213 in words is "sixty-one billion, four hundred two million, one hundred thirty-four thousand, two hundred thirteen".