61403526101 has 8 divisors (see below), whose sum is σ = 63540196320. Its totient is φ = 59268143088.

The previous prime is 61403526049. The next prime is 61403526103. The reversal of 61403526101 is 10162530416.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-61403526101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61403526103) 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, 224231 + ... + 416036.

It is an arithmetic number, because the mean of its divisors is an integer number (7942524540).

Almost surely, 2^61403526101 is an apocalyptic number.

It is an amenable number.

61403526101 is a deficient number, since it is larger than the sum of its proper divisors (2136670219).

61403526101 is a wasteful number, since it uses less digits than its factorization.

61403526101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643603.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 61403526101 in words is "sixty-one billion, four hundred three million, five hundred twenty-six thousand, one hundred one".