61403526045 has 24 divisors (see below), whose sum is σ = 107931837312. Its totient is φ = 32287298400.

The previous prime is 61403526031. The next prime is 61403526049. The reversal of 61403526045 is 54062530416.

61403526045 is a `hidden beast` number, since 6 + 1 + 40 + 3 + 5 + 2 + 604 + 5 = 666.

It is not a de Polignac number, because 61403526045 - 2³⁵ = 27043787677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61403526049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9606121 + ... + 9612510.

It is an arithmetic number, because the mean of its divisors is an integer number (4497159888).

Almost surely, 2^61403526045 is an apocalyptic number.

It is an amenable number.

61403526045 is a deficient number, since it is larger than the sum of its proper divisors (46528311267).

61403526045 is a wasteful number, since it uses less digits than its factorization.

61403526045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19218713 (or 19218710 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 61403526045 in words is "sixty-one billion, four hundred three million, five hundred twenty-six thousand, forty-five".