21392932092 has 48 divisors (see below), whose sum is σ = 57128440320. Its totient is φ = 6103628352.

The previous prime is 21392932037. The next prime is 21392932103. The reversal of 21392932092 is 29023929312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120048 + ... + 239159.

It is an arithmetic number, because the mean of its divisors is an integer number (1190175840).

Almost surely, 2^21392932092 is an apocalyptic number.

It is an amenable number.

21392932092 is an abundant number, since it is smaller than the sum of its proper divisors (35735508228).

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

21392932092 is a wasteful number, since it uses less digits than its factorization.

21392932092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359930 (or 359928 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 21392932092 in words is "twenty-one billion, three hundred ninety-two million, nine hundred thirty-two thousand, ninety-two".