142778450034 has 96 divisors (see below), whose sum is σ = 350133900480. Its totient is φ = 43246612800.

The previous prime is 142778450029. The next prime is 142778450039. The reversal of 142778450034 is 430054877241.

142778450034 is a `hidden beast` number, since 1 + 42 + 7 + 78 + 4 + 500 + 34 = 666.

It is an interprime number because it is at equal distance from previous prime (142778450029) and next prime (142778450039).

It is a super-2 number, since 2×142778450034² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142778450039) 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, 15546924 + ... + 15556104.

It is an arithmetic number, because the mean of its divisors is an integer number (3647228130).

Almost surely, 2^142778450034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142778450034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175066950240).

142778450034 is an abundant number, since it is smaller than the sum of its proper divisors (207355450446).

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

142778450034 is a wasteful number, since it uses less digits than its factorization.

142778450034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118 (or 12106 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 142778450034 in words is "one hundred forty-two billion, seven hundred seventy-eight million, four hundred fifty thousand, thirty-four".