21342932697470 has 32 divisors (see below), whose sum is σ = 39238330521600. Its totient is φ = 8354751067936.

The previous prime is 21342932697467. The next prime is 21342932697473. The reversal of 21342932697470 is 7479623924312.

It is an interprime number because it is at equal distance from previous prime (21342932697467) and next prime (21342932697473).

It is a super-2 number, since 2×21342932697470² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342932697473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2933051 + ... + 7161609.

It is an arithmetic number, because the mean of its divisors is an integer number (1226197828800).

Almost surely, 2^{21342932697470} is an apocalyptic number.

21342932697470 is a deficient number, since it is larger than the sum of its proper divisors (17895397824130).

21342932697470 is a wasteful number, since it uses less digits than its factorization.

21342932697470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239352.

The product of its (nonzero) digits is 27433728, while the sum is 59.

The spelling of 21342932697470 in words is "twenty-one trillion, three hundred forty-two billion, nine hundred thirty-two million, six hundred ninety-seven thousand, four hundred seventy".