29142237690 has 48 divisors (see below), whose sum is σ = 75797849088. Its totient is φ = 7768388448.

The previous prime is 29142237671. The next prime is 29142237701. The reversal of 29142237690 is 9673224192.

29142237690 is a `hidden beast` number, since 291 + 42 + 237 + 6 + 90 = 666.

It is a super-2 number, since 2×29142237690² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190519 + ... + 307541.

It is an arithmetic number, because the mean of its divisors is an integer number (1579121856).

Almost surely, 2^29142237690 is an apocalyptic number.

29142237690 is an abundant number, since it is smaller than the sum of its proper divisors (46655611398).

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

29142237690 is a wasteful number, since it uses less digits than its factorization.

29142237690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119803 (or 119800 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 29142237690 in words is "twenty-nine billion, one hundred forty-two million, two hundred thirty-seven thousand, six hundred ninety".