61454354433 has 8 divisors (see below), whose sum is σ = 86251725600. Its totient is φ = 38813276448.

The previous prime is 61454354431. The next prime is 61454354443. The reversal of 61454354433 is 33445345416.

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

It is not a de Polignac number, because 61454354433 - 2¹ = 61454354431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61454354431) 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, 539073228 + ... + 539073341.

It is an arithmetic number, because the mean of its divisors is an integer number (10781465700).

Almost surely, 2^61454354433 is an apocalyptic number.

It is an amenable number.

61454354433 is a deficient number, since it is larger than the sum of its proper divisors (24797371167).

61454354433 is a wasteful number, since it uses less digits than its factorization.

61454354433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078146591.

The product of its digits is 1036800, while the sum is 42.

Adding to 61454354433 its reverse (33445345416), we get a palindrome (94899699849).

The spelling of 61454354433 in words is "sixty-one billion, four hundred fifty-four million, three hundred fifty-four thousand, four hundred thirty-three".