61212548001 has 16 divisors (see below), whose sum is σ = 89228759040. Its totient is φ = 37018378320.

The previous prime is 61212547997. The next prime is 61212548003. The reversal of 61212548001 is 10084521216.

It is not a de Polignac number, because 61212548001 - 2² = 61212547997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61212548001.

It is not an unprimeable number, because it can be changed into a prime (61212548003) 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, 1987881 + ... + 2018438.

It is an arithmetic number, because the mean of its divisors is an integer number (5576797440).

Almost surely, 2^61212548001 is an apocalyptic number.

It is an amenable number.

61212548001 is a deficient number, since it is larger than the sum of its proper divisors (28016211039).

61212548001 is a wasteful number, since it uses less digits than its factorization.

61212548001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006796.

The product of its (nonzero) digits is 3840, while the sum is 30.

The spelling of 61212548001 in words is "sixty-one billion, two hundred twelve million, five hundred forty-eight thousand, one".