61154699803 has 8 divisors (see below), whose sum is σ = 62589542400. Its totient is φ = 59720431848.

The previous prime is 61154699789. The next prime is 61154699807. The reversal of 61154699803 is 30899645116.

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-61154699803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61154699807) 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 7 ways as a sum of consecutive naturals, for example, 75558 + ... + 357796.

It is an arithmetic number, because the mean of its divisors is an integer number (7823692800).

Almost surely, 2^61154699803 is an apocalyptic number.

61154699803 is a deficient number, since it is larger than the sum of its proper divisors (1434842597).

61154699803 is a wasteful number, since it uses less digits than its factorization.

61154699803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287321.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 61154699803 in words is "sixty-one billion, one hundred fifty-four million, six hundred ninety-nine thousand, eight hundred three".