61951422401 has 8 divisors (see below), whose sum is σ = 71140389600. Its totient is φ = 53355291840.

The previous prime is 61951422391. The next prime is 61951422419. The reversal of 61951422401 is 10422415916.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61951422401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61951425401) 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, 148208936 + ... + 148209353.

It is an arithmetic number, because the mean of its divisors is an integer number (8892548700).

Almost surely, 2^61951422401 is an apocalyptic number.

It is an amenable number.

61951422401 is a deficient number, since it is larger than the sum of its proper divisors (9188967199).

61951422401 is a wasteful number, since it uses less digits than its factorization.

61951422401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296418319.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 61951422401 in words is "sixty-one billion, nine hundred fifty-one million, four hundred twenty-two thousand, four hundred one".