61954631411 has 8 divisors (see below), whose sum is σ = 67198998384. Its totient is φ = 56888039680.

The previous prime is 61954631399. The next prime is 61954631423. The reversal of 61954631411 is 11413645916.

It is an interprime number because it is at equal distance from previous prime (61954631399) and next prime (61954631423).

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-61954631411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61954631471) 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, 44443085 + ... + 44444478.

It is an arithmetic number, because the mean of its divisors is an integer number (8399874798).

Almost surely, 2^61954631411 is an apocalyptic number.

61954631411 is a deficient number, since it is larger than the sum of its proper divisors (5244366973).

61954631411 is a wasteful number, since it uses less digits than its factorization.

61954631411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88887621.

The product of its digits is 77760, while the sum is 41.

The spelling of 61954631411 in words is "sixty-one billion, nine hundred fifty-four million, six hundred thirty-one thousand, four hundred eleven".