61465963911 has 16 divisors (see below), whose sum is σ = 89644748160. Its totient is φ = 37152220320.

The previous prime is 61465963901. The next prime is 61465963931. The reversal of 61465963911 is 11936956416.

It is not a de Polignac number, because 61465963911 - 2¹⁸ = 61465701767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61465963901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484481 + ... + 2509098.

It is an arithmetic number, because the mean of its divisors is an integer number (5602796760).

Almost surely, 2^61465963911 is an apocalyptic number.

61465963911 is a deficient number, since it is larger than the sum of its proper divisors (28178784249).

61465963911 is a wasteful number, since it uses less digits than its factorization.

61465963911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993966.

The product of its digits is 1049760, while the sum is 51.

The spelling of 61465963911 in words is "sixty-one billion, four hundred sixty-five million, nine hundred sixty-three thousand, nine hundred eleven".