69391400550 has 24 divisors (see below), whose sum is σ = 172090673736. Its totient is φ = 18504373440.

The previous prime is 69391400537. The next prime is 69391400569. The reversal of 69391400550 is 5500419396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231304519 + ... + 231304818.

It is an arithmetic number, because the mean of its divisors is an integer number (7170444739).

Almost surely, 2^69391400550 is an apocalyptic number.

69391400550 is an abundant number, since it is smaller than the sum of its proper divisors (102699273186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69391400550 is a wasteful number, since it uses less digits than its factorization.

69391400550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462609352 (or 462609347 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The spelling of 69391400550 in words is "sixty-nine billion, three hundred ninety-one million, four hundred thousand, five hundred fifty".