61954896907 has 8 divisors (see below), whose sum is σ = 63127552176. Its totient is φ = 60782378592.

The previous prime is 61954896889. The next prime is 61954896923. The reversal of 61954896907 is 70969845916.

61954896907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-61954896907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61954896947) 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, 1730593 + ... + 1766029.

It is an arithmetic number, because the mean of its divisors is an integer number (7890944022).

Almost surely, 2^61954896907 is an apocalyptic number.

61954896907 is a deficient number, since it is larger than the sum of its proper divisors (1172655269).

61954896907 is a wasteful number, since it uses less digits than its factorization.

61954896907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68477.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 61954896907 in words is "sixty-one billion, nine hundred fifty-four million, eight hundred ninety-six thousand, nine hundred seven".