91547028755 has 48 divisors (see below), whose sum is σ = 140639042880. Its totient is φ = 55947999744.

The previous prime is 91547028739. The next prime is 91547028757. The reversal of 91547028755 is 55782074519.

It is not a de Polignac number, because 91547028755 - 2⁴ = 91547028739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91547028697 and 91547028706.

It is not an unprimeable number, because it can be changed into a prime (91547028757) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95312 + ... + 438381.

It is an arithmetic number, because the mean of its divisors is an integer number (2929980060).

Almost surely, 2^91547028755 is an apocalyptic number.

91547028755 is a deficient number, since it is larger than the sum of its proper divisors (49092014125).

91547028755 is a wasteful number, since it uses less digits than its factorization.

91547028755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533760 (or 533747 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 53.

The spelling of 91547028755 in words is "ninety-one billion, five hundred forty-seven million, twenty-eight thousand, seven hundred fifty-five".